40x^2-285x-280=0

Simple and best practice solution for 40x^2-285x-280=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 40x^2-285x-280=0 equation:


Simplifying
40x2 + -285x + -280 = 0

Reorder the terms:
-280 + -285x + 40x2 = 0

Solving
-280 + -285x + 40x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '5'.
5(-56 + -57x + 8x2) = 0

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

Ignore the factor 5.

Subproblem 1

Set the factor '(-7 + -8x)' equal to zero and attempt to solve: Simplifying -7 + -8x = 0 Solving -7 + -8x = 0 Move all terms containing x to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + -8x = 0 + 7 Combine like terms: -7 + 7 = 0 0 + -8x = 0 + 7 -8x = 0 + 7 Combine like terms: 0 + 7 = 7 -8x = 7 Divide each side by '-8'. x = -0.875 Simplifying x = -0.875

Subproblem 2

Set the factor '(8 + -1x)' equal to zero and attempt to solve: Simplifying 8 + -1x = 0 Solving 8 + -1x = 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 + -1x = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -1x = 0 + -8 -1x = 0 + -8 Combine like terms: 0 + -8 = -8 -1x = -8 Divide each side by '-1'. x = 8 Simplifying x = 8

Solution

x = {-0.875, 8}

See similar equations:

| X^2-10x+3=15 | | 9*h-9=6*h-6 | | x^(-1/2)=2 | | x^-1/2=2 | | -12x+11-4= | | -t+9=5 | | 9m=-11+29 | | 7x+14=4x-10 | | 2x-8.3x+5=0 | | 3x+7=1-3x | | -20a^2+7a+6=0 | | 7/8x=9/8x-1/4x+10 | | 3/2x=3/5 | | -120=-8-8(p-8) | | -2.1(3p-5)= | | 8x-11x=-8 | | x-7=91 | | 3/2x=5/3 | | -5x-10=3x+2 | | v=lyh | | 2/3*10/24*-25/8*-4/5 | | 7.9+x=.9 | | -2.3/p | | 2/3abc | | -5(4p+3)=-135 | | y+(.07xy)=46.34 | | 7x(2-x)=0 | | (a+3)*(a+3)= | | X+(.07x)=46.34 | | -5x-7x+2-6= | | 5=-3x-2x+10 | | b-11b= |

Equations solver categories