If it's not what You are looking for type in the equation solver your own equation and let us solve it.
-5(2+x)x=7x-4
We move all terms to the left:
-5(2+x)x-(7x-4)=0
We add all the numbers together, and all the variables
-5(x+2)x-(7x-4)=0
We multiply parentheses
-5x^2-10x-(7x-4)=0
We get rid of parentheses
-5x^2-10x-7x+4=0
We add all the numbers together, and all the variables
-5x^2-17x+4=0
a = -5; b = -17; c = +4;
Δ = b2-4ac
Δ = -172-4·(-5)·4
Δ = 369
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}$$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$
The end solution:
$\sqrt{\Delta}=\sqrt{369}=\sqrt{9*41}=\sqrt{9}*\sqrt{41}=3\sqrt{41}$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-17)-3\sqrt{41}}{2*-5}=\frac{17-3\sqrt{41}}{-10} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-17)+3\sqrt{41}}{2*-5}=\frac{17+3\sqrt{41}}{-10} $
| 8-m/6=16 | | a225=a225+40(40-1) | | Y-3=-2(x-8) | | -7x+4(x-4)=14 | | -60+13b=-48 | | 3u^2+7u=2 | | 1/2(6x+16)-8=-3/5(45x-10) | | -60+13b=48 | | 8(n-8)=-2n-(1-n) | | 1/2(6x+18)-8=3/5(45x-10) | | 7x+21=-21+x | | (3+5x)(2–3x)=12–15x^2 | | 7a+2(3a+5)=3a+30 | | W=-8x4/9 | | 10+0.99d=1+0.89d | | 5/6b=2/5 | | (c-5)/2=3 | | 2/3(3y-6)+4(5y-8)=92 | | |r|=2 | | 5+2x=9+2x | | (x+1)/3=10 | | 10-0.99d=1-0.89d | | 10-0.99d=1+0.89d | | -4(x-2)=5 | | 12x-13=-6x+13 | | -(b+1)=3 | | (8y+12)^2=18 | | 2=19/3x+1 | | x/15-1/5=30 | | 13x-(-1)=3 | | t=6/5R+22 | | 2x+0=9x+4 |