If it's not what You are looking for type in the equation solver your own equation and let us solve it.
(3x+16)(5x+54)=180
We move all terms to the left:
(3x+16)(5x+54)-(180)=0
We multiply parentheses ..
(+15x^2+162x+80x+864)-180=0
We get rid of parentheses
15x^2+162x+80x+864-180=0
We add all the numbers together, and all the variables
15x^2+242x+684=0
a = 15; b = 242; c = +684;
Δ = b2-4ac
Δ = 2422-4·15·684
Δ = 17524
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}$$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$
The end solution:
$\sqrt{\Delta}=\sqrt{17524}=\sqrt{4*4381}=\sqrt{4}*\sqrt{4381}=2\sqrt{4381}$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(242)-2\sqrt{4381}}{2*15}=\frac{-242-2\sqrt{4381}}{30} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(242)+2\sqrt{4381}}{2*15}=\frac{-242+2\sqrt{4381}}{30} $
| 7x+9x-1=4(4x+3) | | 3x+63=32 | | x+1.9=9.66 | | 1000÷10y=6y | | -3x2+45=0 | | 10(x+5)=105 | | (3x+15)°=(2x+50)° | | 9z+5=5z-37 | | 2x-97=133-12x | | H=5+65t-256 | | 0.04(y-6)+0.20y=0.14y-0.3 | | 0=-(s-3)+1 | | 3=3/5(2n+1) | | x/6+6=7-x/6 | | 5n−1=6n−7 | | |6+9|-(-10)=x | | V(2x+1)=72 | | 5x2x-1=x-12-1 | | 0.8w-3.5=4.8 | | 11x-24=76 | | m-25.4=104 | | h+8=-10 | | |6w-18|=12 | | 1x+4=5x+3 | | 8/6=b/12 | | 5w+6=6w+21 | | 7x+x+x=9 | | 25.50+72.25r=225.25 | | 1/3+2m/3=2m/3-2/3 | | -1.6y-3.7=-4.4 | | -8t+9=-9t | | (5x+4)+49=90 |