If it's not what You are looking for type in the equation solver your own equation and let us solve it.
(5+2a)(4+2a)-20=22
We move all terms to the left:
(5+2a)(4+2a)-20-(22)=0
We add all the numbers together, and all the variables
(2a+5)(2a+4)-20-22=0
We add all the numbers together, and all the variables
(2a+5)(2a+4)-42=0
We multiply parentheses ..
(+4a^2+8a+10a+20)-42=0
We get rid of parentheses
4a^2+8a+10a+20-42=0
We add all the numbers together, and all the variables
4a^2+18a-22=0
a = 4; b = 18; c = -22;
Δ = b2-4ac
Δ = 182-4·4·(-22)
Δ = 676
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}$$a_{2}=\frac{-b+\sqrt{\Delta}}{2a}$$\sqrt{\Delta}=\sqrt{676}=26$$a_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(18)-26}{2*4}=\frac{-44}{8} =-5+1/2 $$a_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(18)+26}{2*4}=\frac{8}{8} =1 $
| 7s-1+1=-10+6s | | -6x+13x+7=14 | | 8q^2-3q-2=0 | | 10-6v=-7v | | 3j-j+5=19 | | n+(-13)=-2 | | 2+3n=4n-7 | | 10(8t+1)-14=t-(t+3) | | 12*0.77^x=1 | | 10x-10x-8=4 | | -19m+8m-12=0 | | -2y=-3-3y | | -18+n=-3 | | 4u^2-6u+5=0 | | -7=r-7 | | -16t^2+79t+6=0 | | 2x+4x−2=20 | | 2g+2g=8 | | -17c+19=-18c | | -20+b=-3 | | -5=3(c+6)+-8 | | 3x=4=x+8 | | -20=r-5 | | 15+n=31 | | 8^3x=(1/16)^-x-1 | | 9^2x=-87 | | |2x|+19=13 | | 12/17=120/x | | 2a^+9a=11 | | 12/17=120/n | | p-19=-33 | | -18g=18 |