Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 873518: I have my answer for a quadratic equation, but I don't know what number goes first. My answer is x1=4 and x2=2. would the answer be: {4,2} or {2,4}. I am a 10 year old doing algebra
Click here to see answer by josmiceli(19441)

Question 873584: What must be added to the following to complete the square?
x^2 + 6bx
Click here to see answer by josgarithmetic(39617)

Question 873587: Please solve the following equation by completing square and then check the answer.
2x^2 - 3x - 2 = 0
Click here to see answer by josgarithmetic(39617)

Question 873616: Product of two consecutive even integers plus their sum is 98. Find the numbers ?
Click here to see answer by lenny460(1073)

Question 873616: Product of two consecutive even integers plus their sum is 98. Find the numbers ?
Click here to see answer by richwmiller(17219)

Question 873205: find the integral for the surface area of the surface of revolution and approximate the integral with a numerical method :
y=4cosx, 0<= x <= pi/4, revolved about the x axis ?
Click here to see answer by Fombitz(32388)

Question 873648: find the vertex and x-intercept(s) of the function given below y=x^2+4x+7
Click here to see answer by ewatrrr(24785)

Question 873666: find the vertex and x-intercept(s) of the function given below y=x^2-x-23
Click here to see answer by ewatrrr(24785)

Question 873666: find the vertex and x-intercept(s) of the function given below y=x^2-x-23
Click here to see answer by Fombitz(32388)

Question 873731: Given the quadratic equation y=2x^2+4x+1 find the coordinates of the vertex
Click here to see answer by ewatrrr(24785)

Question 873763: Vertex form f(x)=(x+6)(x+2)
Click here to see answer by ewatrrr(24785)

Question 873756: can guys give me an explanation on how to solve quadratic equations and quadratic functions
Click here to see answer by ewatrrr(24785)

Question 873799: Hello there I was just hoping that someone could help clarify how to solve this quadratic equation. I know that the answers end up being x=6 or -2 but Im not sure that I am carrying out the steps right using the quadratic formula. Could anyone show me how this works out with all the steps? Thanks!
x^2-4x=12.

Click here to see answer by josgarithmetic(39617)

Question 873863: find what c is
b^2+5b+c
Click here to see answer by josgarithmetic(39617)

Question 873826: How to factor and show steps for solving this equation: -16t^2+50t+4
Click here to see answer by Fombitz(32388)

Question 874113: y=x2+6x+12 what is the answer to this
Click here to see answer by Fombitz(32388)

Question 874117: what is the answer to this c2=12c
Click here to see answer by Fombitz(32388)

Question 874119: What is the answer to this question c2=12c factoring
Click here to see answer by Fombitz(32388)

Question 874121: What is the answer to y=5x2-10x what is the vertex

Click here to see answer by Fombitz(32388)

Question 874285: Help!
Determine the number of real solutions of -x^2 -6x - 12=0
Use the quadratic formula to find the exact values of the real solutions, if they exist. Give the solution Set.
Use a calculator to find approximations for the answers. Round your answers to the nearest thousandth.
Click here to see answer by jim_thompson5910(35256)

Question 874616: 5x^2+6x+7=0

Click here to see answer by jim_thompson5910(35256)

Question 874670: What is the maximum value of f to four decimal places graphically, f(x)=100x-11x^2+2?

Click here to see answer by josgarithmetic(39617)

Question 874670: What is the maximum value of f to four decimal places graphically, f(x)=100x-11x^2+2?

Click here to see answer by MathTherapy(10551)

Question 874827: Please help me solve this equation:

Click here to see answer by ewatrrr(24785)

Question 874921: please solve the following:
1.find two numbers whose sum is 13 and whose product is 40
2.the area of a rectangle is 94sq. units and its perimeter is 38units.
find the length and width of the rectangle.
3.form an equation whose roots are the additive inverse of the roots

Click here to see answer by josgarithmetic(39617)

Question 874981: 1.find two numbers whose sum is 13 and whose product is 40
2.the area of a rectangle is 94sq. units and its perimeter is 38units.
find the length and width of the rectangle.

Click here to see answer by Alan3354(69443)

Question 874959: pleae answe these qustion
1.find two numbers whose sum is 13 and whose product is 40
2.the area of a rectangle is 94sq. units and its perimeter is 38units.
find the length and width of the rectangle.
thanks
Click here to see answer by Alan3354(69443)

Question 875153: If x is a solution for x+ (1 over x) = 2 then calculate x(squared) + (1 over x (squared))
Click here to see answer by josgarithmetic(39617)

Question 875198: Is 4(x� + 25) completely factored? If not, justify your answer?
Click here to see answer by richard1234(7193)

Question 875220: y=x^2-2x(-2 is less than or equal to x which is less than or equal to 4)
don't under stand how to do this and i also dont understand the terms related
Click here to see answer by ewatrrr(24785)

Question 396661: 7a^2+49a+4a+28=0
7a(a+7)+7(a+7)=0
now,
(7a+7) (a+7)
by solving these, we get
a= -1,-7
Click here to see answer by Parmod(1)

Question 875463: I have to find where the parabola crosses the x-axis and the y-axis for this equation: Y=x^2-3x+2. Could someone please help?
Click here to see answer by Theo(13342)

Question 875625: Please help me solve this equation:

Click here to see answer by Alan3354(69443)

Question 875658: How do you graph the parabola of y=x^2-5x+6.
Click here to see answer by Alan3354(69443)

Question 875697: How do I find the two points where the parabola touches the x axis in an equation using the quadratic formula?
Click here to see answer by josgarithmetic(39617)

Question 875758: Solve this equation by completing the square: 5x^2-20x+6=0

Click here to see answer by josgarithmetic(39617)

Question 875872: Is it possible to design a rectangular park of perimeter 80m and area 400m? If so, find its length and breadth.
Click here to see answer by richard1234(7193)

Question 875951: If a quadratic equation has only one real solution, this means that
(x,y) coordinates of the solution represent either a minimum
or maximum value of the parabola.
a. true
b. false

Click here to see answer by KMST(5328)

Question 875957: A quadratic function is of the form
a. y = ax3 + bx2 + cx + d
b. y = ax2 + bx + c
c. y = mx + b
d. none of the above

Click here to see answer by ewatrrr(24785)

Question 875987: What is the answer to 10-4x=2
Click here to see answer by jim_thompson5910(35256)

Question 876013: Find the quadratic equation with integral coefficient whose roots are 9 +- (plus or minus) i
Click here to see answer by Theo(13342)

Question 876091: solve using the quadratic formula. express answers as exact roots.
x^2-6x+3=0
3x^2+5x+1=0
3x^2-6x-8=0
4x^2-2x+5=0
b^2+3b=1
Click here to see answer by Alan3354(69443)

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, 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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, 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23941..23985, 23986..24030, 24031..24075, 24076..24120, 24121..24165, 24166..24210, 24211..24255, 24256..24300, 24301..24345, 24346..24390, 24391..24435, 24436..24480, 24481..24525, 24526..24570, 24571..24615, 24616..24660, 24661..24705, 24706..24750, 24751..24795, 24796..24840, 24841..24885, 24886..24930, 24931..24975, 24976..25020, 25021..25065, 25066..25110, 25111..25155, 25156..25200, 25201..25245, 25246..25290, 25291..25335, 25336..25380, 25381..25425, 25426..25470, 25471..25515, 25516..25560, 25561..25605, 25606..25650, 25651..25695, 25696..25740, 25741..25785, 25786..25830, 25831..25875, 25876..25920, 25921..25965, 25966..26010, 26011..26055, 26056..26100, 26101..26145, 26146..26190, 26191..26235, 26236..26280, 26281..26325, 26326..26370, 26371..26415, 26416..26460, 26461..26505, 26506..26550, 26551..26595, 26596..26640, 26641..26685, 26686..26730, 26731..26775, 26776..26820, 26821..26865, 26866..26910, 26911..26955, 26956..27000, 27001..27045, 27046..27090, 27091..27135, 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