(x-40)(x+2)=0

Simple and best practice solution for (x-40)(x+2)=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-40)(x+2)=0 equation:


Simplifying
(x + -40)(x + 2) = 0

Reorder the terms:
(-40 + x)(x + 2) = 0

Reorder the terms:
(-40 + x)(2 + x) = 0

Multiply (-40 + x) * (2 + x)
(-40(2 + x) + x(2 + x)) = 0
((2 * -40 + x * -40) + x(2 + x)) = 0
((-80 + -40x) + x(2 + x)) = 0
(-80 + -40x + (2 * x + x * x)) = 0
(-80 + -40x + (2x + x2)) = 0

Combine like terms: -40x + 2x = -38x
(-80 + -38x + x2) = 0

Solving
-80 + -38x + x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-2 + -1x)(40 + -1x) = 0

Subproblem 1

Set the factor '(-2 + -1x)' equal to zero and attempt to solve: Simplifying -2 + -1x = 0 Solving -2 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + -1x = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -1x = 0 + 2 -1x = 0 + 2 Combine like terms: 0 + 2 = 2 -1x = 2 Divide each side by '-1'. x = -2 Simplifying x = -2

Subproblem 2

Set the factor '(40 + -1x)' equal to zero and attempt to solve: Simplifying 40 + -1x = 0 Solving 40 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-40' to each side of the equation. 40 + -40 + -1x = 0 + -40 Combine like terms: 40 + -40 = 0 0 + -1x = 0 + -40 -1x = 0 + -40 Combine like terms: 0 + -40 = -40 -1x = -40 Divide each side by '-1'. x = 40 Simplifying x = 40

Solution

x = {-2, 40}

See similar equations:

| -2x-y=-13 | | -3*0+2y=-4 | | x^4+11x^2=0 | | 36x^2-121x+16=0 | | x^2/3-7x^1/3+12=0 | | 19x-7=12x-35 | | 165-5x=6x-22 | | X^2-10x+17=-4 | | 3x-2x=1+1+100 | | -67-7x=30-21x | | (x^2-49)=0 | | (6x+1)(6x-1)=0 | | 2x+4=5+3 | | (36x+1)(36x-1)=0 | | -3(5y)-7+4(7y+4)= | | 1/f=1/g+1/h | | x+x+x=12-1-2 | | (6x-1)(6x-1)=0 | | x^3+3x^2+4x-8=0 | | (16x-2x-2)/(4x-1) | | (5/2n+1)+(3/2n-1)=22/4n^2-1 | | 2x+4x+5=35 | | -8y-1=-7y-2 | | x^2+11x-49=4x-5 | | 2n-6=5n+24 | | c^16/k^16*16c^8/k^16 | | 2x/x-2+x/x+4=-(5)/(x+4) | | 1=7x+15 | | 4x*2y=0 | | x^2-2x-1=7 | | 46-4x=14x+22 | | 1/2+17/9 |

Equations solver categories