If it's not what You are looking for type in the equation solver your own equation and let us solve it.
7(x^2+4x+4)-5=8
We move all terms to the left:
7(x^2+4x+4)-5-(8)=0
We add all the numbers together, and all the variables
7(x^2+4x+4)-13=0
We multiply parentheses
7x^2+28x+28-13=0
We add all the numbers together, and all the variables
7x^2+28x+15=0
a = 7; b = 28; c = +15;
Δ = b2-4ac
Δ = 282-4·7·15
Δ = 364
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}$$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$
The end solution:
$\sqrt{\Delta}=\sqrt{364}=\sqrt{4*91}=\sqrt{4}*\sqrt{91}=2\sqrt{91}$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(28)-2\sqrt{91}}{2*7}=\frac{-28-2\sqrt{91}}{14} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(28)+2\sqrt{91}}{2*7}=\frac{-28+2\sqrt{91}}{14} $
| 3n+2(n+5)=15 | | n+5/16=1 | | -8z=8 | | -8-3w=11 | | 40+7x=6(-7+8x) | | 5-(6-4x)-3=11 | | 0=-(3/4)y-2 | | -5(p+3/5)=-4 | | 1-8k=1-8k | | 18-5z+6z=9 | | -3x+10-x+6x=-20 | | -65=(3g-5)5 | | -b+4b=3b | | 6(2y+6)=4(9+3y | | 2x-1=4-1/2X | | 1/2x+1/2x=6 | | 3(y–4)+6/6–2=7 | | 2x-1=4-1/2 | | 15=26y | | X2+3x=270 | | |2x-2|=7 | | x/6-5=-14 | | 7+8r-4r=5r+5 | | 4-7m=1-4m | | 113=5x+53 | | x-5.1=3(x-5.5) | | 11=12−q | | x/3+3/5=5/12 | | x-5.1-3x-16.5=0 | | 14=-2(4r+5) | | 40x-10/13=15 | | -3-4(-5x+1)=93 |