# Questions on Algebra: Quadratic Equation answered by real tutors!

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 Quadratics: solvers Practice! Answers archive Lessons Word Problems In Depth

 Question 342189: What are two numbers that when added equal -150 and when multiplied equal 3600? Click here to see answer by Alan3354(30993)

 Question 342212: Solve for x. 2x^2=-13-15 it is not 2*x as well. It is 2x to the second power. would you subtract 15 or use the quadratic equation??? stuck!! Click here to see answer by Alan3354(30993)

 Question 342211: how to find a= b= c= from -2t =-8 ^ to the second power Click here to see answer by Fombitz(13828)

 Question 342298: Solve by factoring: 35x + 19 = 3(x^2 - 3) Click here to see answer by Fombitz(13828)

 Question 342311: If a^2 + b^2 = a^2 - 2ab + b^2, then which of the following must be true? (A) a = 0 (B) b = 0 (C) a = 0 or b = 0 (D) a = 0 and b = 0 (E) cannot be determined from the given information Click here to see answer by Fombitz(13828)

 Question 342387: x+4/x+2=7/x+2 + 24/x^2-4 Find all the real solutions Click here to see answer by Fombitz(13828)

 Question 342464: Determine the nature of the solutions of the equation. x^2-14x+49=0 What does the equation have? One real solution, two non-real solutions, or two real solutions Click here to see answer by Fombitz(13828)

 Question 342463: solve for x. x^2+18x+4=0 Click here to see answer by vleith(2825)

 Question 342472: Solve 4x^2=20 Find the x-intercepts of f(x)=4x^2-20. What are the solutions? x=?(type an exact answer, using radicals as needed. rationalize all denominators. express complex numbers in terms of i. use a comma to separate answers. What are the x-intercepts? or are there no x-intercepts?(type an ordered pair. type an exact answer, using radicals as needed. rationalize all denominators. use a comma to separate answers as needed. Click here to see answer by Fombitz(13828)

 Question 342492: How do you find a, b, and c of the equation y=ax2+bx+c? Click here to see answer by Fombitz(13828)

 Question 342611: Please help: Write a quadratic equation in the variable x having the given numbers as solutions. Type the equation in standard form, ax^2+bx+c=0. +sqrt2,5sqrt2 Click here to see answer by solver91311(16897)

 Question 342617: Graphing a parabola exercise o Choose a graphing program to work with, either Excel or Graph. See Graphing Instructions in Course Materials Forum. Begin by opening a Word document that will contain the graph. Using the chosen software plot these 4 points on one graph and label each point with its coordinates. (0,-8), (2,10), (-2,-10). Enter as a separate Point Series if using Graph: (-1.25,0). o The next step (added to the previous graph) is to graph the vertical line x = -1.25. Label this line as the Axis of Symmetry. o Graph the Parabola: Using GRAPH: Right click on the Point Series of the 3 points on the parabola; select Insert Trendline; select Polynomial; select line color and style. Using Excel: Select line or arrow from toolbar; select line color, style, and thickness. Complete labeling and indicate the vertex and intercepts Click here to see answer by solver91311(16897)

 Question 342738: in ax^2+bx+c form, what is x^2+4x+8=5x+18 Click here to see answer by jim_thompson5910(28595)

 Question 342559: find the quadratic model ofr each set of values. (-1,-1),(1,-3)(2,8) Click here to see answer by Fombitz(13828)

 Question 342988: the are of a rectangle is 144in^2. the length is 4 times great than the width. Which quadratic equation represents the are of the rectangle? a)w(4w)=144 b)w(4-w)=144 c)w(w-4))=144 d)w(w+4)=144 Click here to see answer by jim_thompson5910(28595)

 Question 342947: 7x - 34 = 5/x Click here to see answer by Fombitz(13828)

 Question 342607: Please help: What is the solution for x^2+7x-4=0? What are the x intercepts for: f(x)=x^2+7x-4 Click here to see answer by Fombitz(13828)

 Question 343210: how do u draw a gragh for the quadratic equation? Click here to see answer by Alan3354(30993)

 Question 343204: what does the word discremation mean? and the formula? Click here to see answer by Alan3354(30993)

 Question 343276: 5x2 = -10x - 2 Click here to see answer by edjones(7569)

 Question 343315: how do I figure this problem out -3/x = x/-3 Click here to see answer by mananth(12270)

 Question 343321: How do you solve a Quadratic Equatiobn by factoring? Click here to see answer by akc(7)

 Question 343360: With a tailwind, a plane flew the 3000 km from Calgary to Montreal in 5 h. The return flight,against the wind, took 6 h. Find the wind speed and the speed of the plane. Click here to see answer by josmiceli(9691)

 Question 343410: If a = b + 1, then what is the value of (a - b)^3 - (b - a)^3 ? Click here to see answer by Fombitz(13828)

 Question 343421: Find the equation of the quadratic function with zeros 10 and 14 and a vertex at (12, -8). Click here to see answer by Fombitz(13828)

 Question 343455: Find the dimensions of a rectangle whose perimeter is 26 meters and whose arae is 40 square meters. I know this is very basic, but I have not been in a classroom in over 35 years. Thank you. Click here to see answer by scott8148(6628)
 Question 343455: Find the dimensions of a rectangle whose perimeter is 26 meters and whose arae is 40 square meters. I know this is very basic, but I have not been in a classroom in over 35 years. Thank you. Click here to see answer by solver91311(16897)

 Question 343519: Obtain dy/dx (rate of change) using the direct rule: y= 2.5x^4 - x^3/2.5 - x/2.5 +2.5 & y= (x^3-2.5x^2)/(2.5sqrtx) Click here to see answer by solver91311(16897)

 Question 343651: A square is altered so that one dimension is increased by 4, while the other dimension is decreased by 2. The area of the resulting rectangle is 55ft^2. Find the area of the original square. Click here to see answer by solver91311(16897)

 Question 343862: Solve the following by completing the square 2x^2 - x - 6 = 0 Click here to see answer by Fombitz(13828)

 Question 343858: Solve the following equation using the quadratic formula (x - 6) (x - 8) = -1 Click here to see answer by Fombitz(13828)

 Question 343922: Directions only said SOlve: (x^2 -2x)^2 -11(x^2 -2x) +24=0 Click here to see answer by Jk22(389)
 Question 343922: Directions only said SOlve: (x^2 -2x)^2 -11(x^2 -2x) +24=0 Click here to see answer by Fombitz(13828)

 Question 343890: 2x(x+1)=7 Click here to see answer by Fombitz(13828)
 Question 343890: 2x(x+1)=7 Click here to see answer by ewatrrr(10682)

 Question 343947: how to write in standard form with a slope of 18/17 going through the point of (-1,-1) Click here to see answer by Fombitz(13828)

 Question 343952: Solve the system: 2x + 3y = 6, x - 3y = 8 Thank you! Click here to see answer by stanbon(57377)

 Question 343955: Sove for F: r = sqrt kq1q2/ sqrt F Thank you so much! Click here to see answer by stanbon(57377)
 Question 343955: Sove for F: r = sqrt kq1q2/ sqrt F Thank you so much! Click here to see answer by edjones(7569)

 Question 343957: Factor completely: 7x^3 - 42x^2 - 112x Really appreciate your help! Click here to see answer by stanbon(57377)

 Question 343953: Solve by factoring and using the principle of zero products 9x^2 + 6x - 8 = 0 Thanks! Click here to see answer by stanbon(57377)

 Question 343956: Solve: -3x + 14 - x < 56 + 3x Gracias! Click here to see answer by nerdybill(6962)
 Question 343956: Solve: -3x + 14 - x < 56 + 3x Gracias! Click here to see answer by Jk22(389)

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