If it's not what You are looking for type in the equation solver your own equation and let us solve it.
(4x+7)(7x-38)=180
We move all terms to the left:
(4x+7)(7x-38)-(180)=0
We multiply parentheses ..
(+28x^2-152x+49x-266)-180=0
We get rid of parentheses
28x^2-152x+49x-266-180=0
We add all the numbers together, and all the variables
28x^2-103x-446=0
a = 28; b = -103; c = -446;
Δ = b2-4ac
Δ = -1032-4·28·(-446)
Δ = 60561
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}$$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$
The end solution:
$\sqrt{\Delta}=\sqrt{60561}=\sqrt{9*6729}=\sqrt{9}*\sqrt{6729}=3\sqrt{6729}$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-103)-3\sqrt{6729}}{2*28}=\frac{103-3\sqrt{6729}}{56} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-103)+3\sqrt{6729}}{2*28}=\frac{103+3\sqrt{6729}}{56} $
| x–3.75=12.25 | | -39=3r | | -(17)=y=-27 | | -(17)=y=27 | | 4=-3+c | | 4x-4=6x-2+7x | | x×x=180 | | ×=4/5(y-4) | | -4(7)-9y=-26 | | 6(m+3)=2(m+5 | | 8(w-4)=56 | | ×=4÷5(y-4) | | 0.5=y/0.4 | | -4+6x=6x+4 | | (28)+3y=28 | | 4/24=x/42 | | 5x+30=-10+x | | -3(13)+9y=57 | | 3(2y-4)=4y-4+2y | | -15+9y=39 | | -15+9y=49 | | 6x+5-2x=30-x | | 7/5=21/2x | | −18=−6+2b | | 16x=48+4x | | 2x+8–4x=18–7x | | x*0,85=x | | 1/3(a)=-5 | | 6(x/3+1/1)=6(x/6) | | 4-2^(0,3x-2)=0 | | -7x-7+x=1-3x | | 2-2x=13-5x-5 |