If it's not what You are looking for type in the equation solver your own equation and let us solve it.
(4x+5)(3x+6)=0
We multiply parentheses ..
(+12x^2+24x+15x+30)=0
We get rid of parentheses
12x^2+24x+15x+30=0
We add all the numbers together, and all the variables
12x^2+39x+30=0
a = 12; b = 39; c = +30;
Δ = b2-4ac
Δ = 392-4·12·30
Δ = 81
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{81}=9$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(39)-9}{2*12}=\frac{-48}{24} =-2 $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(39)+9}{2*12}=\frac{-30}{24} =-1+1/4 $
| -2g=-4 | | x+.20x=790.80 | | 4x-7=113 | | -5k=12 | | Q=1q+9q | | 25/15=40x | | 8-6r=13 | | 7+5*x=-23 | | 5y=-49 | | x-0.8x=156 | | 6v+34=8(v+2) | | x+.06x=134.62 | | 2(3x-15+22)=(4x-19)2 | | 4-5c+2c=-11 | | m/3=m+8/5 | | 3x-1/2=1/2+2x-1/2+1 | | |x^2-14x+29|=4 | | 25+19x=28+18x | | 61-p=69 | | 20w2-11w=3 | | -13=r/9-8 | | 24,000-4000x=4000 | | 4h−2=14 | | 13x−23=4x+13 | | 9x-2x=x | | x+x-14=54 | | 16x+10=15x+30 | | x+x+14=54 | | (y^2-6)=(3y^2-6y+2)= | | (y^2-6)(3y^2-6y+2)=0 | | -7+9p-9+14p=34 | | 5m-4=3m+2 |