8x^2+71x-9=0

Simple and best practice solution for 8x^2+71x-9=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 8x^2+71x-9=0 equation:


Simplifying
8x2 + 71x + -9 = 0

Reorder the terms:
-9 + 71x + 8x2 = 0

Solving
-9 + 71x + 8x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-9 + -1x)(1 + -8x) = 0

Subproblem 1

Set the factor '(-9 + -1x)' equal to zero and attempt to solve: Simplifying -9 + -1x = 0 Solving -9 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + -1x = 0 + 9 Combine like terms: -9 + 9 = 0 0 + -1x = 0 + 9 -1x = 0 + 9 Combine like terms: 0 + 9 = 9 -1x = 9 Divide each side by '-1'. x = -9 Simplifying x = -9

Subproblem 2

Set the factor '(1 + -8x)' equal to zero and attempt to solve: Simplifying 1 + -8x = 0 Solving 1 + -8x = 0 Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + -8x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -8x = 0 + -1 -8x = 0 + -1 Combine like terms: 0 + -1 = -1 -8x = -1 Divide each side by '-8'. x = 0.125 Simplifying x = 0.125

Solution

x = {-9, 0.125}

See similar equations:

| b+3(y+3b)= | | x^4+13x^2+30=0 | | x-35-x=5 | | x^4+13x+30=0 | | 125a^3+64b^3=0 | | 12x^2-37x+28=0 | | 8x-54=4x-6 | | 8x^2+16x-23=0 | | 7+2x=x+10 | | 4(t-3)+8t=6t(2t+2)-8 | | 4x^2-5=55 | | x+(x+25)+(2x-28)=577 | | 8(x-9)+4=8x+6 | | 5m^2-20mn-60n^2=0 | | 3(x+3)=5(1-x)-1 | | 7x+3=3x-17 | | 8x^3-3x^2+5x+15=0 | | 12(n+6)=3(24+4n) | | 8x^3-3x^2+5x+5=0 | | 3+4y-2=8y+13-2y | | -2x+25=-9 | | .5x-18=1.2x-25 | | 5n=7n-12 | | 9t+13t=132 | | -10.3x=61.8 | | y=2x^2+6x-5 | | 3t=57 | | 4x+13=-29-10x | | 14.1*8.4= | | 3000=x*50 | | (9+x)+(6+x)+(3+x)=(4+x*2)+(1+x*2) | | a=(14.1)(8.4)/2 |

Equations solver categories