If it's not what You are looking for type in the equation solver your own equation and let us solve it.
(7x+3)(5x+7)=10
We move all terms to the left:
(7x+3)(5x+7)-(10)=0
We multiply parentheses ..
(+35x^2+49x+15x+21)-10=0
We get rid of parentheses
35x^2+49x+15x+21-10=0
We add all the numbers together, and all the variables
35x^2+64x+11=0
a = 35; b = 64; c = +11;
Δ = b2-4ac
Δ = 642-4·35·11
Δ = 2556
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}$$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$
The end solution:
$\sqrt{\Delta}=\sqrt{2556}=\sqrt{36*71}=\sqrt{36}*\sqrt{71}=6\sqrt{71}$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(64)-6\sqrt{71}}{2*35}=\frac{-64-6\sqrt{71}}{70} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(64)+6\sqrt{71}}{2*35}=\frac{-64+6\sqrt{71}}{70} $
| -5=a/20 | | 2/5y+19=30 | | 3s–70=s | | 2y+33=4y-68+3y-42 | | 81+75+x=180 | | 6-2(x-1)=9x+4 | | (7x+13)(5x+7)=10 | | 2y=5,4y=15 | | -16s+15s-12s=13 | | -63=7k | | 29=-8+v/3 | | -72(x-14)=-4 | | 56=8y=-96 | | 26=3x+7x+6 | | 4.4+5.5=x | | 2y+33+4y-68=3y-42 | | 144=8-8x | | 3y–42=2y+33+4y-68 | | 2-3(4x+5)=23 | | -49=v/2 | | 1+x=4567890 | | 5(6-y)=12.5 | | -6|5x-1|-5=-29 | | 0.5y-8=3(y+4) | | -2(4x-1)+3=-5x+11 | | 2t+15=9t-27 | | 9t–27=2t+15 | | 189=26-v | | 6(x-1)=8x-2(x+5) | | 3a-57=2a-33 | | 100=-2(1-8r) | | 2a–33=3a-57 |