5x+7x(x+4)=88

Simple and best practice solution for 5x+7x(x+4)=88 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 5x+7x(x+4)=88 equation:



5x+7x(x+4)=88
We move all terms to the left:
5x+7x(x+4)-(88)=0
We multiply parentheses
7x^2+5x+28x-88=0
We add all the numbers together, and all the variables
7x^2+33x-88=0
a = 7; b = 33; c = -88;
Δ = b2-4ac
Δ = 332-4·7·(-88)
Δ = 3553
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(33)-\sqrt{3553}}{2*7}=\frac{-33-\sqrt{3553}}{14} $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(33)+\sqrt{3553}}{2*7}=\frac{-33+\sqrt{3553}}{14} $

See similar equations:

| 5(g-2)+g=6(g=4) | | 24+10g=60+8g | | 3r+40.47-(-3)=6.15 | | 3(x-5)2+4=19 | | -1.56-16.7j-7.86=-8.16-16.4j | | 2x(4)=40 | | -11x+4x=49 | | (50/x)=(20/2) | | 4y-2=6y+18 | | 2+3x+5x=34 | | -5x2+25=0 | | 4x+3(x-4)=-26 | | 7^6m-7=31 | | -4e+8=-5e+19 | | 9k+7=10k1 | | –x–2–5x=–44 | | 10x+5=550 | | 6x-8x+2=20 | | 5/3(2x-4x)+3x-3/2=-2x(3-1)+2/3(x-1) | | -10-9w=-5w+2 | | -3h-9=-2h-20 | | 3. –x–2–5x=–44 | | 2(x+4)−5=3x+4(3+x) | | (25/50)=(x/2) | | -6-8x=14+2x | | 8x-43+69=90 | | Y-55=-8/5(x-10) | | x/x+5=1/2 | | 6p-5=13* | | 7(x−6)= 28 | | 12-13v=-14v | | 6q-7=-3q-1 |

Equations solver categories