Questions on Algebra: Quadratic Equation answered by real tutors!

Algebra -> Algebra -> Quadratic Equations and Parabolas -> Quadratic Equations Lessons -> Quadratic Equation Lesson -> Questions on Algebra: Quadratic Equation answered by real tutors! Log On

Ad: You enter your algebra equation or inequality - Algebrator solves it step-by-step while providing clear explanations. Free on-line demo .
Ad: Algebra Solved!™: algebra software solves algebra homework problems with step-by-step help!
Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations!

Quadratics: solvers

Practice!

Problems, free tutors

Lessons

Word Problems

In Depth

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 4016: The lesson is on "Solving Quadratic Equations by Using the Quadratic Formula. How do you solve by graphing on problems like x to the 2nd -2x-24=0 or how do u graph problems with irrational roots?
Click here to see answer by longjonsilver(2297)

Question 4015:
3w/5 - 1 = w/2 + 1
Click here to see answer by longjonsilver(2297)

Question 4001: The lesson is on "Solving Quadratic Equations by Using the Quadratic Formula. How do you solve by graphing on problems like x to the 2nd -2x-24=0 or how do u graph problems with irrational roots?
Click here to see answer by longjonsilver(2297)

Question 4020: Find the probability of drawing an ace and a jack when two cards are drawn (without replacement) from a standard deck of cards
Click here to see answer by longjonsilver(2297)

Question 3999: Thankx Pieter!
What are the next two terms of the sequence 32, -48, 72, -108, . . . ?

Click here to see answer by carl(7)

Question 3999: Thankx Pieter!
What are the next two terms of the sequence 32, -48, 72, -108, . . . ?

Click here to see answer by khwang(438)

Question 4115: Find the vertex and intercepts for each quadratic function. Does it open up or down? y = -3x^2 + 6x

Click here to see answer by smartdude17(30)

Question 4114: Find the vertex and intercepts for each quadratic function. Does it open up or down? y = x^2 – 4

Click here to see answer by rapaljer(3620)

Question 4144:

>>please write in steps and please explain each.

thank you for your help

Solve for x:

2x³+9x²+4x = 0 <<



Click here to see answer by AnlytcPhil(958)

Question 4164: Find any relative maxima or minima for f(x)=x^2 +2x-8
Click here to see answer by Earlsdon(4898)

Question 4159: I have an extra credit problem in my college algebra class.
I need to solve for x from the standard quadratic equation ax^2 + bx + c=0 to end as a result as the quadratic formula! Any advice?
Click here to see answer by raafatriad(1)

Question 4160: x varies directly as the square of s and inversely as t. How does x change when s is doubled? When both s and t are doubled?
Click here to see answer by Earlsdon(4898)

Question 4249: 10 - 4x -3 = 2

Click here to see answer by ms.nelson(2)

Question 4245: solve.
-5/3 x = - 3/5
Click here to see answer by ms.nelson(2)

Question 4248: Translates the verbal expression into an algebraic expression.
Eight percent of a number
Click here to see answer by rapaljer(3620)

Question 4246: solve.
13 - x/2 = x - 1/2

Click here to see answer by rapaljer(3620)

Question 4271: Find the equation of the axis of symmetry for the following parabola y = x^2 - 6x + 7
Click here to see answer by rapaljer(3620)

Question 4280: solve by first eliminating the decimal numbers.
0.5x + 3.4 = 0.2x + 12.4
Click here to see answer by khwang(438)

Question 4285: solve by first eliminating the decimal numbers.
0.5x + 3.4 = 0.2x + 12.4
Click here to see answer by Earlsdon(4898)

Question 4285: solve by first eliminating the decimal numbers.
0.5x + 3.4 = 0.2x + 12.4
Click here to see answer by rapaljer(3620)

Question 4282: If a < b, then -a > -b. Why?
Click here to see answer by Earlsdon(4898)

Question 4282: If a < b, then -a > -b. Why?
Click here to see answer by ntnk(49)

Question 4284: If a plane flies eastward for four hours with a 60 mph tailwind and returns in five hours, what was the total distance traveled?
(Hint: the rate of travel eastbound is S + 60 and westbound is S - 60. S is the speed of the plane in still air.)

Click here to see answer by rapaljer(3620)

Question 4270: The formula for the height s reached by a rocket fired straight up from the ground with a velocity of 96 feet per second is h = -16t^2 + 96t. Find the height reached after 1.5 seconds.
Click here to see answer by Earlsdon(4898)

Question 4269: The perimeter of a rectangular floor is 42 feet, and the area is 108 square feet. Find the length of the floor.
Click here to see answer by Earlsdon(4898)

Question 4268: The perimeter of a rectangular floor is 42 feet, and the area is 108 square feet. Find the length of the floor.
Click here to see answer by Earlsdon(4898)

Question 4286: What role of operations that applies when you are solving an equation has a major exception when you are solving an inequality? Why?
Click here to see answer by rapaljer(3620)

Question 4306: Quadratic equations:
Find two possitive numbers that differ by 2 and have a producy of 20.
The answer is -1 + squareroot of 21 and 1 + squareroot of 21.
How do I at the answer. (need steps)

Click here to see answer by Earlsdon(4898)

Question 4348: solve the polynomial equation 3x cubed=6x squared by factoring
Click here to see answer by khwang(438)

Question 4347: solve the equation x cubed-3x squared-10=0
Click here to see answer by khwang(438)

Question 4357: solve the polynominal equation 2x cubed=16x squared by factoring.
Click here to see answer by rapaljer(3620)

Question 4356: solve the quadratic equation (x-3)squared=36 by the square root method.
Click here to see answer by rapaljer(3620)

Question 4350: solve the quadratic equation x squared+4x-5=0 by completing squares.

Click here to see answer by rapaljer(3620)

Question 4346: solve the quadratic equation 3x squared +4x+2=0

Click here to see answer by rapaljer(3620)

Question 4368: solve 6 absolute 3x+3=15

Click here to see answer by IREZ(1)

Question 4368: solve 6 absolute 3x+3=15

Click here to see answer by rapaljer(3620)

Question 4387: 3x^4=6x^2 by factoring

Click here to see answer by rapaljer(3620)

Question 4386: x^4-3x^2-10=0 solve by making the appropriate substitution.
Click here to see answer by rapaljer(3620)

Question 4385: x^4-3x^2-10=0 solve by making the appropriate substitution.
Click here to see answer by rapaljer(3620)

Question 3992: Find the product of the complex number and it's conjugate
-6+2i
Click here to see answer by ntnk(49)

Question 4403: The problem is : 2 positive numbers that differ by 7 whose product is 1 I have not been able to come up with an answer.
Click here to see answer by rapaljer(3620)

Question 3607: how do you graph f(x)=-2x^2
Click here to see answer by ntnk(49)

Question 4458: ) Find all real/complex solutions for x using the Quadratic formula, and simplify the results:

x^2 + 2x + 3 = 0
Click here to see answer by Earlsdon(4898)

Question 4465: what are the x-intercepts of the equation y=2x^2+4x-3
please answer with square roots or fractions
Click here to see answer by rapaljer(3620)

Question 4240: find all of the roots of these equations:
x^3-2x^2-2x-3
x^3+x^2+x+1
x^4+3x^3+3x^2+3x+2
Click here to see answer by khwang(438)

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