If it's not what You are looking for type in the equation solver your own equation and let us solve it.
-4x(5x+-2)=-12x+4-8x+4
We move all terms to the left:
-4x(5x+-2)-(-12x+4-8x+4)=0
We add all the numbers together, and all the variables
-4x(5x-2)-(-20x+8)=0
We multiply parentheses
-20x^2+8x-(-20x+8)=0
We get rid of parentheses
-20x^2+8x+20x-8=0
We add all the numbers together, and all the variables
-20x^2+28x-8=0
a = -20; b = 28; c = -8;
Δ = b2-4ac
Δ = 282-4·(-20)·(-8)
Δ = 144
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$$\sqrt{\Delta}=\sqrt{144}=12$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(28)-12}{2*-20}=\frac{-40}{-40} =1 $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(28)+12}{2*-20}=\frac{-16}{-40} =2/5 $
| (x-5)/(x+6)=2/7 | | 6+2=w | | 17-9x=7(x+7) | | x^2-16x+160=0 | | n-6n=8n | | 15y+1=-3 | | 4(x+3)=2÷3x | | 3z-1=-3 | | 0.5a−0.3=5a | | 5/3w=-30 | | 0=6+(3x)/2 | | 8+6n=n-7-5 | | 32-4(2x-3)=61 | | 2x2+3x=50 | | 0=6+3x/2 | | -4u/9=-12 | | 6+8p-6p=6p-6 | | -5x=10/9 | | -4/7v=8 | | 9x-1=54-2x | | 4z/10+5=6 | | 0=-3/2*x+1 | | 6(x=5)=5x+3 | | 1+x^2+x=3 | | 24x-56=-6(x+7)+4 | | x*x+x*x*x+x=2 | | 17x^2-56x+20=0 | | 24x-56=-6x+4 | | 4(x+1)=3(3+x) | | 5+4b=33 | | 7/x+31=150 | | X2=9;x= |