8f^2-f-7=0

Simple and best practice solution for 8f^2-f-7=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 8f^2-f-7=0 equation:


Simplifying
8f2 + -1f + -7 = 0

Reorder the terms:
-7 + -1f + 8f2 = 0

Solving
-7 + -1f + 8f2 = 0

Solving for variable 'f'.

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

Subproblem 1

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

Subproblem 2

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

Solution

f = {-0.875, 1}

See similar equations:

| 5+r=1 | | 5x^2-28x+19=0 | | 5x+4x^2-84=0 | | trevin-5.8=1.2 | | 7d^2-9d+1=0 | | 5(2b+4)=5b+1 | | -8x^2+14x=0 | | 4x-3x-14=0 | | y^2-2by=56 | | 10+3y=25 | | -3x^2+15x+11=0 | | (X-4)(2x-12)=0 | | 4x-3x-4=0 | | y=-2x^2-3 | | 4a^2+18a+5=15 | | 8(x-3)+7=5x-22 | | 4x+7x-15x= | | 12x-2x-2x= | | (-x)-(-3x)= | | 1x^3+2x^2+3x+6= | | 31.02x+47.02=0 | | 14=9(2x-5) | | (4n+8)(5n-2)= | | p^2=-3 | | 90=0.5(x-6) | | 2=8y | | -2a-46=29+a | | -6+m=-23 | | 10x^4-8x^3+2x^2= | | 7x+5=28x+1 | | (2b+8)(7b+7)= | | log(x^2-3x+2)=0 |

Equations solver categories