If it's not what You are looking for type in the equation solver your own equation and let us solve it.
(2x+30)(2x+80)=0
We multiply parentheses ..
(+4x^2+160x+60x+2400)=0
We get rid of parentheses
4x^2+160x+60x+2400=0
We add all the numbers together, and all the variables
4x^2+220x+2400=0
a = 4; b = 220; c = +2400;
Δ = b2-4ac
Δ = 2202-4·4·2400
Δ = 10000
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{10000}=100$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(220)-100}{2*4}=\frac{-320}{8} =-40 $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(220)+100}{2*4}=\frac{-120}{8} =-15 $
| 2x-60+-18=-80-(-4) | | 12x+3x=204 | | -10-6y=-7y | | 10x-8=5x+42= | | 52=2(p-1)+7(-2p+6) | | 5x-10=3x+20= | | 1-3m=-5m-15 | | v+1=-2+4v | | 6x+16=2x+24= | | v61=-2+4v | | (11-0,7t)t=0 | | 0x+50=8x+30 | | 44=-3(p-3)-8(8p+4) | | 4x-2=6x=4 | | 5x-4=89 | | n-6-1=-13 | | 18=8n-5n | | -43=-6(8-4k)-(k-5) | | 6×2t-4=26 | | 16a=22,500/a^2 | | 10=-3(4x+3)-(5-8x) | | 2u–36=8(u-6) | | 12/n=8/15 | | 2u–36=8*(u-6) | | 7-3r=3-4r | | (13/6x)=17/6 | | y−4y=33 | | 13/6x=17/6 | | 12/x=8/15 | | b-5+1=-3+b | | -x2+4x+4=0 | | -7(1-7m)-8(-5m-8)=57 |