If it's not what You are looking for type in the equation solver your own equation and let us solve it.
(4x+4)(2x-1)-x^2+4=0
We add all the numbers together, and all the variables
-1x^2+(4x+4)(2x-1)+4=0
We multiply parentheses ..
-1x^2+(+8x^2-4x+8x-4)+4=0
We get rid of parentheses
-1x^2+8x^2-4x+8x-4+4=0
We add all the numbers together, and all the variables
7x^2+4x=0
a = 7; b = 4; c = 0;
Δ = b2-4ac
Δ = 42-4·7·0
Δ = 16
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{16}=4$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(4)-4}{2*7}=\frac{-8}{14} =-4/7 $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(4)+4}{2*7}=\frac{0}{14} =0 $
| 0.5x+0.4=4.4 | | 3x+2(-4-3/5x)=-17 | | n-1/5n=15 | | 2x+6+1=72x | | x+(x-3)=17 | | 12n^2+11n-15=0 | | 5x+2(-2x-9)=3x+2(-x-9)+3 | | 4x^2-13x=-10 | | 25=1-3v | | (x/3)+3=-2 | | 4m+2=44 | | b+(b-2)=8 | | 55+12x+17=180 | | (m/7)-3=-7 | | 15=50-5x | | y+(y+5)=33 | | 7(1.6+3n)-5.8=29.4 | | (x-15)-(11-2x)=8 | | 2/9y+1/4=1/9y+5/3 | | -7+4t=3t+3 | | 3x+8=15-4x | | x+6.5=-6.5 | | -7(x+1)=-35 | | -4=(a/3)+5 | | x+8=-2x+5 | | 5-12x=57 | | 11-t+2.2=5.9 | | 67+10x-3=180 | | -8-2x=4(1-2x) | | k-44=-122 | | r+(r+2)=20 | | 45=-3x+3(2x+4) |