If it's not what You are looking for type in the equation solver your own equation and let us solve it.
(x+121)(x+81)=180
We move all terms to the left:
(x+121)(x+81)-(180)=0
We multiply parentheses ..
(+x^2+81x+121x+9801)-180=0
We get rid of parentheses
x^2+81x+121x+9801-180=0
We add all the numbers together, and all the variables
x^2+202x+9621=0
a = 1; b = 202; c = +9621;
Δ = b2-4ac
Δ = 2022-4·1·9621
Δ = 2320
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}$$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$
The end solution:
$\sqrt{\Delta}=\sqrt{2320}=\sqrt{16*145}=\sqrt{16}*\sqrt{145}=4\sqrt{145}$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(202)-4\sqrt{145}}{2*1}=\frac{-202-4\sqrt{145}}{2} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(202)+4\sqrt{145}}{2*1}=\frac{-202+4\sqrt{145}}{2} $
| (5z+1)^2+400=0 | | 64=v4 | | m=-5;(-1,3) | | 150-10x=120-4x | | 11=-4-3a | | (5y-1)(7+y)=0 | | 5x*3=X-7+4X | | a^2-5a+13=0 | | ×-2=10-5x | | 2(2r-1)/6+5=3(r+7)/6 | | -8w-32=-4w-44 | | -5x-7=83 | | 10x-10=8x-10 | | 42=-7(z=3) | | 7x+8x+6x=151 | | 9(y+9)=90 | | 7y÷8y=56 | | 8=2m-10 | | 8(3n+2)-8=176 | | 3(t-8)=3.9 | | x/5=0.5555 | | -2+5k=23 | | 1.5×m=6.75 | | 2x^2-25x+68=0 | | 4t+12=4t+12= | | 3-5(5+-4)=-2t+9 | | -10=-3z | | 23x+111=180 | | 2=10+n/3 | | 1-9/4=b | | -14=r-12 | | -19=-1-9p |