-2(2f-4)=-4(-f+2)f=

Simple and best practice solution for -2(2f-4)=-4(-f+2)f= 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 -2(2f-4)=-4(-f+2)f= equation:



-2(2f-4)=-4(-f+2)f=
We move all terms to the left:
-2(2f-4)-(-4(-f+2)f)=0
We add all the numbers together, and all the variables
-2(2f-4)-(-4(-1f+2)f)=0
We multiply parentheses
-4f-(-4(-1f+2)f)+8=0
We calculate terms in parentheses: -(-4(-1f+2)f), so:
-4(-1f+2)f
We multiply parentheses
4f^2-8f
Back to the equation:
-(4f^2-8f)
We get rid of parentheses
-4f^2-4f+8f+8=0
We add all the numbers together, and all the variables
-4f^2+4f+8=0
a = -4; b = 4; c = +8;
Δ = b2-4ac
Δ = 42-4·(-4)·8
Δ = 144
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$f_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$f_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{144}=12$
$f_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(4)-12}{2*-4}=\frac{-16}{-8} =+2 $
$f_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(4)+12}{2*-4}=\frac{8}{-8} =-1 $

See similar equations:

| 6z-1=7z+8.5 | | 6t+6+7t+7=90 | | (x+2)+3x-40=180 | | 14x+9=4+5x+2-11x | | 1/4=(20x+4)9x+5+ | | –7t=–5t+6 | | -11=-22+5y | | -11=-22+y5 | | 64+x=49 | | –10u=1,000u= | | MB=2x+65 | | 2042-y=783 | | 5x-8x=7-x | | y-155=386 | | 30x12=360 | | 2y+8=29 | | C+(2x+12)=90 | | 79=z-134 | | y/22=106 | | Y=-1,000x | | 52/5=3/8+h/1/3 | | 216/x=6 | | 14x−9=10x+3 | | -2(x-3)-5=11 | | 10=2x=x+9 | | 15x+10=7x+9 | | Y=161+0.3x | | –9h+8–3h=6h–10 | | 3/4=-1/2×y | | Y+(-14)y=-33 | | 3.7g+8=1.7g+20 | | 9x-(2x+5/2=5/2 |

Equations solver categories