Questions on Algebra: Quadratic Equation answered by real tutors!

Algebra -> Algebra -> Quadratic Equations and Parabolas -> 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 83933: Factor completely. 3(x – 2)^2 – 3(x – 2) – 6
Click here to see answer by Edwin McCravy(2920)

Question 83944: how do you solve quadratic equations and then also simplify the radical solution???
examle: 5(x.squared)- (x.squared)=42

help!!!
Click here to see answer by bucky(1732)

Question 83931: Factor completely. 6x^2 + 7x + 2
Click here to see answer by jim_thompson5910(13787)

Question 83932: Factor. 8m^4n – 16mn^4
Click here to see answer by checkley75(3666)

Question 83930: Write using positive exponents only. b^–2
Click here to see answer by tutor_paul(424)

Question 83930: Write using positive exponents only. b^–2
Click here to see answer by checkley75(3666)

Question 83917: Would someone show me step by step how to figure this problem. Please. Thank You.
The profit on a watch is given by P=x^2-13x-80, where x is the number of watches sold per day. How many watches were sold on a day when there was a $50 loss?
Click here to see answer by jim_thompson5910(13787)

Question 83928: Simplify. (m^5)^8
Click here to see answer by checkley75(3666)

Question 83926: Multiply. (x + 2)(x – 2)
Click here to see answer by checkley75(3666)

Question 83968: Factor. 9x(x – 7y) – 6(x – 7y)
Click here to see answer by Nate(3495)

Question 83971: Solve: x^2 + 4x – 12 = 0
Click here to see answer by Nate(3495)

Question 83974: Factor completely. 18x^3 – 36x^2
Click here to see answer by Nate(3495)

Question 83973: Factor by grouping. x^3 – 3x^2 + 4x – 12
Click here to see answer by Nate(3495)

Question 83970: Factor completely. ax – ay + x^2 – xy
Click here to see answer by Nate(3495)

Question 83969: Rewrite the middle term as the sum of two terms and then factor completely.
15x^2 – 21x + 6

Click here to see answer by Nate(3495)

Question 83923: Subtract 5m2 + 2m + 9 from 7m2 – 5m – 8.

Click here to see answer by tutor_paul(424)

Question 83821: The demand equation for a certain type of printer is given by D=-200p+35,500. The supply equation is predicted to be S=-p^2+400p-20,000. Find the equilibrium price.
Click here to see answer by ankor@dixie-net.com(6691)

Question 83987: Write using positive exponents, and simplify if possible.
(–3x)^–2

Click here to see answer by tutorcecilia(2042)

Question 83985: Simplify. (m^4)^3(m^2)^9/(m^3)^2
Click here to see answer by tutorcecilia(2042)

Question 83983: Multiply. 3xy^2(5xy – 4x + 6y)

Click here to see answer by tutorcecilia(2042)

Question 83922: Multiply. (3x – 1)(2x + 5)
Click here to see answer by ankor@dixie-net.com(6691)

Question 83981: Rewrite the middle term as the sum of two terms and then factor by grouping.
x^2 – 2x – 63

Click here to see answer by stanbon(26259)

Question 83986: Multiply. Write the answer in scientific notation.
(2.4 x 10^–5)(4 x 10^–4)

Click here to see answer by stanbon(26259)

Question 83982: Write 9.03 x 10^–2 in standard notation
Click here to see answer by stanbon(26259)

Question 84001: Find the x-intercepts. y=x^2-4x+4.
Click here to see answer by scott8148(3382)

Question 84031: What is the vertex form of y=(3x+1)(x-2)and y=3(x-2)?
Is it y=3(x-5/6)^2-4.03?
Click here to see answer by vertciel(183)

Question 84031: What is the vertex form of y=(3x+1)(x-2)and y=3(x-2)?
Is it y=3(x-5/6)^2-4.03?
Click here to see answer by Edwin McCravy(2920)

Question 84003: Find the x-intercepts. y=x^2-2x+4
Click here to see answer by checkley75(3666)

Question 83967: Rewrite the middle term as the sum of two terms and then factor by grouping.
x^2 – 2x – 63

Click here to see answer by praseenakos@yahoo.com(417)

Question 84000: Solve by completing the square. 4x^2+2x-3=0
Click here to see answer by tanimachatterjee(60)

Question 84020: When using the quadratic formula to solve a quadratic equation (ax2 + bx + c = 0), the discriminant is b2 - 4ac. This discriminant can be positive, zero, or negative.
Create three unique equations where the discriminant is positive, zero, or negative. For each case, explain what this value means to the graph of y = ax2 + bx + c.

Click here to see answer by rapaljer(3620)

Question 83966: Multiply. 3xy^2(5xy – 4x + 6y)
Click here to see answer by tutor_paul(424)

Question 84116:
Determine the number of solutions and tell if the discriminant is greater than 0, equal to 0 or less than 0. Select two answers.

Click here to see answer by funmath(2873)

Question 84185This question is from textbook Intermediate Algebra

: My professor says that the following word problem can be solved using a form of the quadratic equation. I can't see it, and all my attempts to solve via trial and error have failed. Please explain how this works!
"Find two numbers whose sum is 6 and whose product is 2"
Thanks,
para.laxThis question is from textbook Intermediate Algebra

Click here to see answer by checkley75(3666)

Question 84177: I can't figure out how to divide this problem. The problem is;
x^3+2x^2+x+12 divided by x+3
Click here to see answer by vertciel(183)

Question 82805: (2X-6)^2=-8
Click here to see answer by vertciel(183)

Question 84190This question is from textbook Algebra Structure and Method

: I am supposed to set up a quadratic equation for this word problem, but I don't see how to do that. The problem is:
Working alone, Colleen can paint a house in 2 hours less than James. Working together, they can paint the house in 10 hours. how long would it take James to pain the house by himself.This question is from textbook Algebra Structure and Method

Click here to see answer by ankor@dixie-net.com(6691)

Question 81348: Solve the following system by addition. If a unique solution does not exist, state whether the system is inconsistent or dependent.
x+5y=10
-2x-10y=-20
Click here to see answer by vertciel(183)

Question 84333: What is the process to write the Quadratic equation that goes through the points (0,12),(4,0) and(-3,0)
Click here to see answer by funmath(2873)

Question 84353: Solve by using the quadratic formula. x^2 = 7x – 11
My answer that I got is -7+-SQRT97
Is that correct?
Click here to see answer by funmath(2873)

Question 84350: Solve by using the quadratic formula. 3x^2 = 11x + 4
My answer that I got is 1/3,-4
Is that correct?
Click here to see answer by tutor_paul(424)

Question 84351: Solve by using the quadratic formula. 5x^2 – x = 3
My answer that I got is 7 +- SQRT47/4
Is that correct?
Click here to see answer by vertciel(183)

Question 84351: Solve by using the quadratic formula. 5x^2 – x = 3
My answer that I got is 7 +- SQRT47/4
Is that correct?
Click here to see answer by josmiceli(3003)

Question 84582: Some students planned for a get-together. The budget for food was $500. Five of the students failed to come because of the distance and therefore the cost of food for each member increased by $5. How many students attended the get-together?
Click here to see answer by venugopalramana(3286)

Question 84554: How would I write an equation in standard form of a parabola with a line of symmetry x=2 and containing (2,3)(4,-5)?
Click here to see answer by vertciel(183)

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