7x^2-43x=-40

Simple and best practice solution for 7x^2-43x=-40 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 7x^2-43x=-40 equation:


Simplifying
7x2 + -43x = -40

Reorder the terms:
-43x + 7x2 = -40

Solving
-43x + 7x2 = -40

Solving for variable 'x'.

Reorder the terms:
40 + -43x + 7x2 = -40 + 40

Combine like terms: -40 + 40 = 0
40 + -43x + 7x2 = 0

Factor a trinomial.
(8 + -7x)(5 + -1x) = 0

Subproblem 1

Set the factor '(8 + -7x)' equal to zero and attempt to solve: Simplifying 8 + -7x = 0 Solving 8 + -7x = 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 + -7x = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -7x = 0 + -8 -7x = 0 + -8 Combine like terms: 0 + -8 = -8 -7x = -8 Divide each side by '-7'. x = 1.142857143 Simplifying x = 1.142857143

Subproblem 2

Set the factor '(5 + -1x)' equal to zero and attempt to solve: Simplifying 5 + -1x = 0 Solving 5 + -1x = 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 + -1x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1x = 0 + -5 -1x = 0 + -5 Combine like terms: 0 + -5 = -5 -1x = -5 Divide each side by '-1'. x = 5 Simplifying x = 5

Solution

x = {1.142857143, 5}

See similar equations:

| v+4=10 | | -10n=(9n) | | 7p-38-24=0 | | -7a^2-8a-6=0 | | 35n+22n+3=0 | | -7a-8a-6=0 | | 9(t-1)=6(t+2) | | 3y=8y-10 | | -18=7m^2+23m | | 8x+32=88 | | 8x-3-4x=(8x-1) | | 3x^2=16x-5 | | x^2+3x-75=0 | | -4x-6.4=-4+6.4 | | 9x^2-12x+7=0 | | .4b-.1(b-100)=70 | | 24x^2-22x+7=0 | | 2x-9+5x=6x+17 | | 4n-2=46 | | 4(4k+1)-8(k-1)=3(2k+3)-2 | | x(x)-14x+42=0 | | F(x)=x^2-11x+30 | | 4-.6666x=-5 | | 4x^2=2x+2 | | x-5(-1.25)=8 | | 3p-1=20 | | ln(x+7)+ln(x-3)=2ln(x) | | -4x^2+3x-16=0 | | 0.25x+.5=0.075 | | 3(7)+4(2)= | | 3xp=6 | | 8x-24=10x-6 |

Equations solver categories