If it's not what You are looking for type in the equation solver your own equation and let us solve it.
(a+3)(a-1)-(2a-1)(a+4)=0
We multiply parentheses ..
(+a^2-1a+3a-3)-(2a-1)(a+4)=0
We get rid of parentheses
a^2-1a+3a-(2a-1)(a+4)-3=0
We multiply parentheses ..
a^2-(+2a^2+8a-1a-4)-1a+3a-3=0
We add all the numbers together, and all the variables
a^2-(+2a^2+8a-1a-4)+2a-3=0
We get rid of parentheses
a^2-2a^2-8a+1a+2a+4-3=0
We add all the numbers together, and all the variables
-1a^2-5a+1=0
a = -1; b = -5; c = +1;
Δ = b2-4ac
Δ = -52-4·(-1)·1
Δ = 29
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:$a_{1}=\frac{-b-\sqrt{\Delta}}{2a}$$a_{2}=\frac{-b+\sqrt{\Delta}}{2a}$$a_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-5)-\sqrt{29}}{2*-1}=\frac{5-\sqrt{29}}{-2} $$a_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-5)+\sqrt{29}}{2*-1}=\frac{5+\sqrt{29}}{-2} $
| 8-(3+x)+10x=100*x | | 13x=(4+x)²-3x-(4-x)² | | (k+1)2-4(k+4)1=0 | | 14÷d=7 | | 41=y/12 | | k2-2k+17=0 | | 8x+6=9x+3 | | x2+5x-750=0 | | 2x+8=9x+3 | | 3x-140=0 | | -6+-20=-2n+4(1+-3n) | | 1/x+1=5 | | 3(x-0.8=4x+4 | | (2x+1)+(x-1)=18 | | 0.5x-0.2=0.3x+0.08 | | x/4+2x/3=6 | | 1/12=11x/12 | | 1/12=132x/12 | | 18x+4+6x+8=180 | | 18x+6x4+8=180 | | 32=15zz= | | 3=2(6-c)+5c | | 4x-1/x=x+7 | | x-5/8=3/8 | | 10-5c=-18+9c | | 40,000=p+p(.5)(20) | | 8(x+4)-3x=23+5x+9 | | 5(-3x+1)=-45 | | (2x+5)+x=180 | | 4.1c+1.79=3.3c−14.76+2.87 | | x2+5=30 | | 4x-24=3x-10 |