5x^2-10=15x

Simple and best practice solution for 5x^2-10=15x equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 5x^2-10=15x equation:


Simplifying
5x2 + -10 = 15x

Reorder the terms:
-10 + 5x2 = 15x

Solving
-10 + 5x2 = 15x

Solving for variable 'x'.

Reorder the terms:
-10 + -15x + 5x2 = 15x + -15x

Combine like terms: 15x + -15x = 0
-10 + -15x + 5x2 = 0

Factor out the Greatest Common Factor (GCF), '5'.
5(-2 + -3x + x2) = 0

Ignore the factor 5.

Subproblem 1

Set the factor '(-2 + -3x + x2)' equal to zero and attempt to solve: Simplifying -2 + -3x + x2 = 0 Solving -2 + -3x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '2' to each side of the equation. -2 + -3x + 2 + x2 = 0 + 2 Reorder the terms: -2 + 2 + -3x + x2 = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -3x + x2 = 0 + 2 -3x + x2 = 0 + 2 Combine like terms: 0 + 2 = 2 -3x + x2 = 2 The x term is -3x. Take half its coefficient (-1.5). Square it (2.25) and add it to both sides. Add '2.25' to each side of the equation. -3x + 2.25 + x2 = 2 + 2.25 Reorder the terms: 2.25 + -3x + x2 = 2 + 2.25 Combine like terms: 2 + 2.25 = 4.25 2.25 + -3x + x2 = 4.25 Factor a perfect square on the left side: (x + -1.5)(x + -1.5) = 4.25 Calculate the square root of the right side: 2.061552813 Break this problem into two subproblems by setting (x + -1.5) equal to 2.061552813 and -2.061552813.

Subproblem 1

x + -1.5 = 2.061552813 Simplifying x + -1.5 = 2.061552813 Reorder the terms: -1.5 + x = 2.061552813 Solving -1.5 + x = 2.061552813 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + x = 2.061552813 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = 2.061552813 + 1.5 x = 2.061552813 + 1.5 Combine like terms: 2.061552813 + 1.5 = 3.561552813 x = 3.561552813 Simplifying x = 3.561552813

Subproblem 2

x + -1.5 = -2.061552813 Simplifying x + -1.5 = -2.061552813 Reorder the terms: -1.5 + x = -2.061552813 Solving -1.5 + x = -2.061552813 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + x = -2.061552813 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = -2.061552813 + 1.5 x = -2.061552813 + 1.5 Combine like terms: -2.061552813 + 1.5 = -0.561552813 x = -0.561552813 Simplifying x = -0.561552813

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.561552813, -0.561552813}

Solution

x = {3.561552813, -0.561552813}

See similar equations:

| 2(d+-1)=-4 | | 16x^2-19x-20=0 | | 4x/7-2x=23/14 | | 2x^2-sqrt(3)x-1= | | y+7=-2(x+5) | | -3q+7=4 | | Cos(theta)=3/7 | | 3x+17=y | | -1(p-3)=15 | | S=2t-8 | | -3(x+5)+3=7(x+2)+8 | | a/4=1.5 | | Y-1=5/6x | | f(x)=-4x^2-2x-3 | | 0.1x-0.7(6-x)=-1.4 | | G=5/3(p-10) | | 6x^2=7-3x | | 3x^3+2x^2+7x+20=0 | | (t-9)(t+81)=0 | | 2/5x=-5 | | 7k^2-11k+4=0 | | x^4-5x^3+20x^2-100x=0 | | -9x-5=10x-7 | | -8-5y=27 | | (2x-18/7)/(4x-36/5)= | | 2x^2+10x+x=0 | | x+7y+z=8 | | 8+5(x+1)-2x=22 | | 18.6y=0 | | -x+6+7x=72 | | 5(x-525)= | | y^2+6y+5=(y+5)(y+n) |

Equations solver categories