Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 18718: √4x^2=x+2
i get confused with equations like this. how would i solve it?
Click here to see answer by venugopalramana(3286)

Question 18717: √4x^2+x-3=2x
how do i solve this equation?

Click here to see answer by venugopalramana(3286)

Question 18500: Hello again!
I really need help with this problem. Could someone kindly help me?
The class is working with Quadratic functions and graphs � I'm supposed to solve the rational inequality. State and graph the solution set:
3/x + 2 > 2 /x -1
Thanks for all of the help. It is appreciated.

Click here to see answer by xcentaur(357)

Question 18493: Hello again!
I really need help with this problem. Could someone kindly help me?
The class is working with Quadratic functions and graphs � I'm supposed to find the vertex and intercepts , then sketch its graph. l really need help.
y= x^2 -4x -12
This is a head-scratcher for me. Thanks for all of the help. It is appreciated.
Click here to see answer by Alwayscheerful(414)

Question 18124: express using a positive exponent z raised to the negative fifth power
Click here to see answer by piglet162431(90)

Question 18826: Solve and Graph:
y = -2x^2 + 8x
Click here to see answer by Alwayscheerful(414)

Question 18828: Solve and Graph:
y = -x^2 - 3x -2
Click here to see answer by Alwayscheerful(414)

Question 18827: Solve and Graph:
y = -3x*2 + 6x
Click here to see answer by Alwayscheerful(414)

Question 18327: Greetings everyone!
I could really use some help from one of the wise Math wizards out there! Could someone please help me solve this word problem? I am stumped:
If a baseball is projected upward from ground level with an initial velocity of 64 feet per second, then its height is a function of time, given by s(t) = -16t^2 + 64t. Graph this function for "0" less than or equal to "t" less than or equal to 4. What is the maximum height reached by the ball? This one's a doozie!
Thanks to all.
Click here to see answer by xcentaur(357)

Question 18997: Bobby traveled a distance of 50x + 150 miles at 50 miles per hour on the Gulf Freeway. Find a binomial that represents the time that he traveled.
Click here to see answer by venugopalramana(3286)

Question 18999: solve formula for the indicated variable.
I=E/R+r for R

Click here to see answer by Earlsdon(6294)

Question 19152: whats 20c+5=5c+65
Click here to see answer by Alwayscheerful(414)

Question 19211: HELP!!! I am having trouble solving
1/x +2
where do I start. Please help me.
Click here to see answer by wuwei96815(245)

Question 19232: "x" varies direcly as the square of "s" and inversely as "t". How does "x" change when "s" is doubled? When both "s" and "t" are doubled?
I figured "x" = "k" "s" squared divided by "t" (using "k" as a non zero constant but I'm stuck.
Click here to see answer by Earlsdon(6294)

Question 19236: MAXIMUM HEIGHT. If a soccer ball is kicked straight up with an initial velocity of 32feet per second, then its height above the earth is a function of time given by s(t)=-16t^2 + 32t. Graph this function for 0 less than or equal(symbol) t less than or equal (symbol)2. What is the maximum height reached by this ball?
Click here to see answer by venugopalramana(3286)

Question 19235: MAXIMUM HEIGHT. If a baseball is projected upward from ground level with an intial velocity of 64 feet per second, then its height is a function of time, given by s(t)=16t^2+64t. Graph this fuction for 0 equal or less than(symbol) t equal or less than(symbol) 4. What is the maximum height reached by the ball?
Click here to see answer by venugopalramana(3286)

Question 19025: 100=500/2+d
find d
Click here to see answer by sukusu(21)

Question 19272: whats the sum of the reciprocals of the first three positive even intergers?
Click here to see answer by longjonsilver(2297)

Question 19274: I'm supposed to solve this by completing the square.
Click here to see answer by longjonsilver(2297)

Question 19280: Without drawing the graph of the given equation, determine (a) how many x-intercepts the parabola has and (b) whether its vertex lies above or below the x- axis.

Click here to see answer by mmm4444bot(95)

Question 19279: Without drawing the graph of the given equation, determine (a) how many x-intercepts the parabola has (b) whether its vertex lies above or below the x- axis.

I have no clue what a parabola even is. I got -1, 6 as the answer, but apparently I'm wrong.
Click here to see answer by mmm4444bot(95)

Question 19278:
Use the quadratic formula to solve the following. Leave irrational roots in the simplest radical form.
Click here to see answer by mmm4444bot(95)

Question 19277: I'm supposed to use the quadratic formula to solve the following and leave the irrational roots in the simplest radical form.
Click here to see answer by mmm4444bot(95)

Question 19276: I thought it had no real solution, but I guess I did it wrong.
Click here to see answer by Earlsdon(6294)

Question 19275: Solve by completing the square.
Click here to see answer by Earlsdon(6294)

Question 18998: After leaving Dallas, Parker drove 300 miles at x mph and then decreased his speed by 10 mph and drove an additional 400 miles. Make a table with the given information and write an expression for his total traveling time. Evaluate the expression for x = 60.
Click here to see answer by xcentaur(357)

Question 18265: I need to know how the signs of A and C (in the quadratic equation: Ax^2+bx+c=0) provide clues as to the number of possible solutions in a quadratic equation.

Thanks in advance!
Click here to see answer by xcentaur(357)

Question 19288: What is the situation when two inequalities have no solution? What are the conditions when the solution of a system of inequalities will be in the first quadrant?
Click here to see answer by xcentaur(357)

Question 19402: I do not understand how to solve these. Any help would be appreciated.

Click here to see answer by Earlsdon(6294)

Question 18387: Explain how a rational expression can be formed for which -3 and 4 are not allowable replacements.
Click here to see answer by xcentaur(357)

Question 19573: Please help me i have 19 promblems and ther multiple choice it doesnt clink with me i dont know how to solve these even though i have been told how can you email theses answers to email address within in a week. Thank you.

1. Which of the following is the greatest common factorof the terms 48s5t3u2 and 40s3tu4?
A. 6s2t2u B. 8s2t2u C.6s3tu D. 8s3tu2

2. What is the greatest common factor of the terms 14c2d and 42c3d?
A. 2c2d B. 3c C.14c2d D.7c2d

Click here to see answer by xcentaur(357)

Question 19709: (x+2)(x-6)=20
Click here to see answer by Paul(988)

Question 19745: 3v^2+4v=1
Click here to see answer by Alwayscheerful(414)

Question 19747: x^2+4x+5=0
Click here to see answer by Alwayscheerful(414)

Question 19762: y=x^2-6x
Click here to see answer by mmm4444bot(95)

Question 19752: h^2=-5h
Click here to see answer by xcentaur(357)

Question 19718: What Quadratic Equation has the following solutions: X= 4 +/- Square root 7?
Click here to see answer by xcentaur(357)

Question 19896: Solve the following problem and include your steps you use to solve this problem.
A roof truss is in the shape of a triangle with a height of x feet and a base of 2x + 1 feet. Write a polynomial that represents the area of the triangle. What is the area if x is 5 feet?
Click here to see answer by vidyamanohar(13)

Question 19917: Please help:
how do I factor the following polynomial using any method?
x^6 + 125
Thank you so much!
Click here to see answer by Earlsdon(6294)

Question 20078: The sum of the squares of two consecutive integers is 13. Find the integers and explain your steps as you solve.

Click here to see answer by pwac(253)

Question 20106: Factor completley.
3am-6n-an+18m
Click here to see answer by Earlsdon(6294)

Question 20105: Solve.
x^2-2x=-13
Thank you
Click here to see answer by pwac(253)

Question 20132: Help!!!
Find all real solutions to the following equation.
Square root(symbol) x^2+3x+6=4
Thanks a bunch!!
Click here to see answer by wuwei96815(245)

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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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, 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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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