(7x+25)x=

Solution for (7x+25)x= equation:

(7x+25)x=

We move all terms to the left:

(7x+25)x-()=0

We add all the numbers together, and all the variables

(7x+25)x=0

We multiply parentheses

7x^2+25x=0

a = 7; b = 25; c = 0;
Δ = b2-4ac
Δ = 252-4·7·0
Δ = 625
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{625}=25$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(25)-25}{2*7}=\frac{-50}{14}
=-3+4/7
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(25)+25}{2*7}=\frac{0}{14}
=0
$