Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE) Get help from our free tutors ===> Algebra.Com stats: 2011 tutors, 418851 problems solved View all solved problems on Quadratic_Equations -- maybe yours has been solved already! Become a registered tutor (FREE) to answer students' questions. Click here to see problems AND answers on one page Question 99094: i don't understand this at all solve each of the folowing quadratic equations by completing the square. 2x^2 + 10x + 11 = 0 Click here to see answer by stanbon(57223)   Question 99091: i don't understand this solve the equation for x x^2 + 4x + 4 =7 Click here to see answer by stanbon(57223)   Question 99093: i don't understand this at all solve each of the folowing quadratic equations by completing the square. x^2 - 6x - 3 = 0 Click here to see answer by jim_thompson5910(28476)   Question 99093: i don't understand this at all solve each of the folowing quadratic equations by completing the square. x^2 - 6x - 3 = 0 Click here to see answer by Msgenes(10)   Question 99090: i don't understand this solve the equation for x 2(x-5)^2=3 Click here to see answer by jim_thompson5910(28476)   Question 99089: i don't understand this solve the equation for x 25x^2 = 13 Click here to see answer by checkley71(8403)   Question 99342: Solve: x2(squared)+2x-35=0 Click here to see answer by timmy1729(23)   Question 99342: Solve: x2(squared)+2x-35=0 Click here to see answer by jim_thompson5910(28476)   Question 99431: solve the quadatric equations by factoring x^2 - 9x - 4 = 6 Click here to see answer by stanbon(57223)   Question 99430: solve the quadatric equations by factoring (x-1)^2=7 Click here to see answer by stanbon(57223)   Question 99433: 4x^2 - 8x + 3 = 5 Click here to see answer by checkley71(8403)   Question 99511: Write your result in scientific notation. (2x10^5)(4x10^4) This is what I have done so far: (2x2^5*5^5)(4x2^4*5^5). I know the answer is suppose to be 8x10^9, I can not figure out how to show the rest. Thank you Click here to see answer by stanbon(57223)   Question 99385: Solve the equation by completing the square, giving your solutions exactly in surd form 2x^2 - 10x + 5 = 0 i got so far but seem to be mucking up somewhere 2(x^2 - 5x + 5/2) = 0 (x^2 - 5/2)^2 = x^2 - 5x + 25/4 but now i'm stuck please could you help regards, nat x Click here to see answer by scott8148(6628)   Question 99533: Solve for y. x + 5y = 10 Click here to see answer by rmromero(383)   Question 99587: Construction. A garden area is 30ft long and 20 ft wide. A path of uniform width is set around the edge. If the remaining garden area is 400ft^2, what is teh width of the path? Click here to see answer by ankor@dixie-net.com(15624)   Question 99597: The width of a rectangular gate is 2 meters(m) larger than it's height. The diagonal brace measures sqrt 6m. Find the width and height. Click here to see answer by edjones(7569)   Question 99494: Debbie traveled by boat 5 miles upstream to fish in her favorite spot. Because of the 4 mph current, it took her 20 minutes longer to get there than to return. How fast will her boat go in still water? Click here to see answer by ankor@dixie-net.com(15624)   Question 99586: The question is: Find the greatest or least value of the following functions. 1) x2-3x+5 Click here to see answer by checkley71(8403)   Question 99593: A company uses the formula C(x)= 0.02x^2+3.4x+150 to model the unit cost in dollars for producing x stabilizer bars. For what number of bars is the unit cost at it's minimum? What is the unit cost at that level of production? Click here to see answer by stanbon(57223)   Question 99654: Determine the equation of the axis of symmetry for the parabola whose x - intercepts are (-3, 0) and (1,0). Click here to see answer by stanbon(57223)   Question 99654: Determine the equation of the axis of symmetry for the parabola whose x - intercepts are (-3, 0) and (1,0). Click here to see answer by jim_thompson5910(28476)   Question 99657: Fully factorise the following expression. (9m^2 - a^2) Can you help me with this one please? Click here to see answer by Earlsdon(6287)   Question 99662: I have a container holding 3/4 litre of liquid. I pour ot 1/3 of the liquid. How much liquid remains in the container? Can you help me with this one please? Click here to see answer by Earlsdon(6287)   Question 99661: Simplify the following fractions leaving the answer in index form. (2n^2 * 3n^3/6n^7) Can you help me please? Click here to see answer by stanbon(57223)   Question 99678: Given f(x)=x^2 * (x-7) - 16 * (x-7), solve f(x) is greater than or equal to 0 . Express your answer using interval notation. Click here to see answer by edjones(7569)   Question 99676: Given F(X) = 4X^2 - 12X, solve f(X) > 0. Click here to see answer by edjones(7569)   Question 99713: Could you please help me solve this equation....The directions say Solve Each Equation by making an appropriate solution...Here is the problem: x-13√x+40=0 √=Square root...Didn't know if that looked like one so I was telling you what it was... Click here to see answer by edjones(7569)   Question 99596: The period T (time in seconds for one complete cycle) of a simple pendulum is related to the length L (in feet) of the pendulum by the formula 8T^2= pi^2L. If a child is on a swing with a 10 foot chain, then how long does it take to complete one cycle of the swing? Click here to see answer by Adam(64)   Question 99663: Given f(x) = x^2 + x - 30, solve f(x)is greater than or equal to 0. Express your answer using interval notation. Click here to see answer by edjones(7569)   Question 99891: Click here to see answer by jim_thompson5910(28476)   Question 99891: Click here to see answer by checkley71(8403)   Question 99894: Find the equation of the axis of symetry for the graph of , and state whether the axis of symetry contains a maximum point or a minimum point of the graph. Click here to see answer by checkley71(8403)   Question 99894: Find the equation of the axis of symetry for the graph of , and state whether the axis of symetry contains a maximum point or a minimum point of the graph. Click here to see answer by jim_thompson5910(28476)   Question 99957: the speed of an airplane in still air is 286 km/h it travels 883 km against the wind and 1119 km with the wind in total time is 13 hr. Click here to see answer by checkley71(8403)   Question 98941: I have no idea how to solve this problem, someone please help me! The problem is: Suppose the cost function for the production of a particular item is given by the equation , where x represents the number of items. How many items should be produced to minimize the cost? Click here to see answer by edjones(7569)   Question 99984: Given the functions f(x)= x^2 - 6x - 4 and g(x)= x - 4, find f(g(4)) . Click here to see answer by edjones(7569)   Question 99985: Given the functions f(x)= sqrt of(x+8)and g(x)= 7x - 4, find f(g(4)). If a decimal is needed, maintain 2 decimal places accuracy. Click here to see answer by edjones(7569)   Question 99983: Given the functions f(x)= x^2 - 9x - 3 and g(x)= x - 3, find f(g(x)) Click here to see answer by edjones(7569)   Question 99878: A rectangular piece of sheet metal is 2 inches longer than it is wide. Squares measuring 4 inches on a side are cut from each corner and the sides are folded to form a box. If the volume of the box is 32 cubic inches, what are the dimensions of the sheet metal? Click here to see answer by checkley71(8403)   Question 100109: How can I find the vertex while using the quadratic formula? Click here to see answer by stanbon(57223)   Question 100158: the demand equation for a certain type of printer is given by D = -200p + 35,000 The supply equation is predicted to be S = -p^2 + 400p - 20,000 Find the equilibrium price. Click here to see answer by checkley71(8403)   Question 100208: Let α and β be the two roots of a quadratic equation ax^2 + 2b^x + c = 0, where a, b and c are constants. Obtain the quadratic equation whose two roots are λ and δ such that λ = α^2 + β^2 and δ = α^2 - β^2. Click here to see answer by Nate(3500)   Question 100208: Let α and β be the two roots of a quadratic equation ax^2 + 2b^x + c = 0, where a, b and c are constants. Obtain the quadratic equation whose two roots are λ and δ such that λ = α^2 + β^2 and δ = α^2 - β^2. Click here to see answer by Edwin McCravy(8880)   Question 100153: Geomatry. The length of a rectangle is 1 cm longer than its width. If the diagnonal of the rectangle is 4cm what are the dimensions (the length and teh width) of the rectangle? Click here to see answer by oberobic(2304)   Question 100218: One cow is tied per tree and three cow's are left and if two cow's are tied per tree then four trees are left. How many trees and cow's are there in total. Click here to see answer by edjones(7569)

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Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265, 5266..5310, 5311..5355, 5356..5400, 5401..5445, 5446..5490, 5491..5535, 5536..5580, 5581..5625, 5626..5670, 5671..5715, 5716..5760, 5761..5805, 5806..5850, 5851..5895, 5896..5940, 5941..5985, 5986..6030, 6031..6075, 6076..6120, 6121..6165, 6166..6210, 6211..6255, 6256..6300, 6301..6345, 6346..6390, 6391..6435, 6436..6480, 6481..6525, 6526..6570, 6571..6615, 6616..6660, 6661..6705, 6706..6750, 6751..6795, 6796..6840, 6841..6885, 6886..6930, 6931..6975, 6976..7020, 7021..7065, 7066..7110, 7111..7155, 7156..7200, 7201..7245, 7246..7290, 7291..7335, 7336..7380, 7381..7425, 7426..7470, 7471..7515, 7516..7560, 7561..7605, 7606..7650, 7651..7695, 7696..7740, 7741..7785, 7786..7830, 7831..7875, 7876..7920, 7921..7965, 7966..8010, 8011..8055, 8056..8100, 8101..8145, 8146..8190, 8191..8235, 8236..8280, 8281..8325, 8326..8370, 8371..8415, 8416..8460, 8461..8505, 8506..8550, 8551..8595, 8596..8640, 8641..8685, 8686..8730, 8731..8775, 8776..8820, 8821..8865, 8866..8910, 8911..8955, 8956..9000, 9001..9045, 9046..9090, 9091..9135, 9136..9180, 9181..9225, 9226..9270, 9271..9315, 9316..9360, 9361..9405, 9406..9450, 9451..9495, 9496..9540, 9541..9585, 9586..9630, 9631..9675, 9676..9720, 9721..9765, 9766..9810, 9811..9855, 9856..9900, 9901..9945, 9946..9990, 9991..10035, 10036..10080, 10081..10125, 10126..10170, 10171..10215, 10216..10260, 10261..10305, 10306..10350, 10351..10395, 10396..10440, 10441..10485, 10486..10530, 10531..10575, 10576..10620, 10621..10665, 10666..10710, 10711..10755, 10756..10800, 10801..10845, 10846..10890, 10891..10935, 10936..10980, 10981..11025, 11026..11070, 11071..11115, 11116..11160, 11161..11205, 11206..11250, 11251..11295, 11296..11340, 11341..11385, 11386..11430, 11431..11475, 11476..11520, 11521..11565, 11566..11610, 11611..11655, 11656..11700, 11701..11745, 11746..11790, 11791..11835, 11836..11880, 11881..11925, 11926..11970, 11971..12015, 12016..12060, 12061..12105, 12106..12150, 12151..12195, 12196..12240, 12241..12285, 12286..12330, 12331..12375, 12376..12420, 12421..12465, 12466..12510, 12511..12555, 12556..12600, 12601..12645, 12646..12690, 12691..12735, 12736..12780, 12781..12825, 12826..12870, 12871..12915, 12916..12960, 12961..13005, 13006..13050, 13051..13095, 13096..13140, 13141..13185, 13186..13230, 13231..13275, 13276..13320, 13321..13365, 13366..13410, 13411..13455, 13456..13500, 13501..13545, 13546..13590, 13591..13635, 13636..13680, 13681..13725, 13726..13770, 13771..13815, 13816..13860, 13861..13905, 13906..13950, 13951..13995, 13996..14040, 14041..14085, 14086..14130, 14131..14175, 14176..14220, 14221..14265, 14266..14310, 14311..14355, 14356..14400, 14401..14445, 14446..14490, 14491..14535, 14536..14580, 14581..14625, 14626..14670, 14671..14715, 14716..14760, 14761..14805, 14806..14850, 14851..14895, 14896..14940, 14941..14985, 14986..15030, 15031..15075, 15076..15120, 15121..15165, 15166..15210, 15211..15255, 15256..15300, 15301..15345, 15346..15390, 15391..15435, 15436..15480, 15481..15525, 15526..15570, 15571..15615, 15616..15660, 15661..15705, 15706..15750, 15751..15795, 15796..15840, 15841..15885, 15886..15930, 15931..15975, 15976..16020, 16021..16065, 16066..16110, 16111..16155, 16156..16200, 16201..16245, 16246..16290, 16291..16335, 16336..16380, 16381..16425, 16426..16470, 16471..16515, 16516..16560, 16561..16605, 16606..16650, 16651..16695, 16696..16740, 16741..16785, 16786..16830, 16831..16875, 16876..16920, 16921..16965, 16966..17010, 17011..17055, 17056..17100, 17101..17145, 17146..17190, 17191..17235, 17236..17280, 17281..17325, 17326..17370, 17371..17415, 17416..17460, 17461..17505, 17506..17550, 17551..17595, 17596..17640, 17641..17685, 17686..17730, 17731..17775, 17776..17820, 17821..17865, 17866..17910, 17911..17955, 17956..18000, 18001..18045, 18046..18090, 18091..18135, 18136..18180, 18181..18225, 18226..18270, 18271..18315, 18316..18360, 18361..18405, 18406..18450, 18451..18495, 18496..18540, 18541..18585, 18586..18630, 18631..18675, 18676..18720, 18721..18765, 18766..18810, 18811..18855, 18856..18900, 18901..18945, 18946..18990, 18991..19035, 19036..19080, 19081..19125, 19126..19170, 19171..19215, 19216..19260, 19261..19305, 19306..19350, 19351..19395, 19396..19440, 19441..19485, 19486..19530, 19531..19575, 19576..19620, 19621..19665, 19666..19710, 19711..19755, 19756..19800, 19801..19845, 19846..19890, 19891..19935, 19936..19980, 19981..20025, 20026..20070, 20071..20115, 20116..20160, 20161..20205, 20206..20250