-x^2+-13x-40=0

Simple and best practice solution for -x^2+-13x-40=0 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 -x^2+-13x-40=0 equation:


Simplifying
-1x2 + -13x + -40 = 0

Reorder the terms:
-40 + -13x + -1x2 = 0

Solving
-40 + -13x + -1x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '-1'.
-1(40 + 13x + x2) = 0

Factor a trinomial.
-1((8 + x)(5 + x)) = 0

Ignore the factor -1.

Subproblem 1

Set the factor '(8 + x)' equal to zero and attempt to solve: Simplifying 8 + x = 0 Solving 8 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + x = 0 + -8 Combine like terms: 8 + -8 = 0 0 + x = 0 + -8 x = 0 + -8 Combine like terms: 0 + -8 = -8 x = -8 Simplifying x = -8

Subproblem 2

Set the factor '(5 + x)' equal to zero and attempt to solve: Simplifying 5 + x = 0 Solving 5 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + x = 0 + -5 x = 0 + -5 Combine like terms: 0 + -5 = -5 x = -5 Simplifying x = -5

Solution

x = {-8, -5}

See similar equations:

| (x2-24x2)3/4 | | 3(-8)+5y=-59 | | x^2-13x+-40=0 | | 1/t+1/3t=1/2 | | 4(15)-3y=51 | | 2w^2+11w+23-2w^2-10w-25=0 | | 350+48xvalue=4 | | 2w^2+11w+23-2w^2+10w+25=0 | | 350+48xvalue=0 | | 2w^2+11w+23+2w^2+10w+25=0 | | -7x-19=-159 | | (3x+9)(3x-9)= | | 2w^2+11w+23-2w+10w+25=0 | | y-3x= | | 2(13)-5y=-14 | | 2w^2+11w+23+2w+10w+25=0 | | -2/13=x+7/13 | | 3x-7-3x= | | 2y+3(4y+5)=-6 | | -1/2+1/9-11/4 | | (4x2-5)1/2 | | 12/34 | | 9y^2+25-30y=0 | | y=2x^2-12x | | -8w-5-3w^2=0 | | 0.2886=mx+b | | 2x+4.8=8.4 | | -8y-3-4y^2=0 | | 8y+3-4y^2=0 | | 7x+4=-129 | | 3v^2+4+13v=0 | | 3t-16=-22+t |

Equations solver categories