(x-3)(x+5)=x(x)-7x-15

Simple and best practice solution for (x-3)(x+5)=x(x)-7x-15 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 (x-3)(x+5)=x(x)-7x-15 equation: 


Simplifying
(x + -3)(x + 5) = x(x) + -7x + -15

Reorder the terms:
(-3 + x)(x + 5) = x(x) + -7x + -15

Reorder the terms:
(-3 + x)(5 + x) = x(x) + -7x + -15

Multiply (-3 + x) * (5 + x)
(-3(5 + x) + x(5 + x)) = x(x) + -7x + -15
((5 * -3 + x * -3) + x(5 + x)) = x(x) + -7x + -15
((-15 + -3x) + x(5 + x)) = x(x) + -7x + -15
(-15 + -3x + (5 * x + x * x)) = x(x) + -7x + -15
(-15 + -3x + (5x + x2)) = x(x) + -7x + -15

Combine like terms: -3x + 5x = 2x
(-15 + 2x + x2) = x(x) + -7x + -15

Multiply x * x
-15 + 2x + x2 = x2 + -7x + -15

Reorder the terms:
-15 + 2x + x2 = -15 + -7x + x2

Add '15' to each side of the equation.
-15 + 2x + 15 + x2 = -15 + -7x + 15 + x2

Reorder the terms:
-15 + 15 + 2x + x2 = -15 + -7x + 15 + x2

Combine like terms: -15 + 15 = 0
0 + 2x + x2 = -15 + -7x + 15 + x2
2x + x2 = -15 + -7x + 15 + x2

Reorder the terms:
2x + x2 = -15 + 15 + -7x + x2

Combine like terms: -15 + 15 = 0
2x + x2 = 0 + -7x + x2
2x + x2 = -7x + x2

Add '-1x2' to each side of the equation.
2x + x2 + -1x2 = -7x + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
2x + 0 = -7x + x2 + -1x2
2x = -7x + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
2x = -7x + 0
2x = -7x

Solving
2x = -7x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '7x' to each side of the equation.
2x + 7x = -7x + 7x

Combine like terms: 2x + 7x = 9x
9x = -7x + 7x

Combine like terms: -7x + 7x = 0
9x = 0

Divide each side by '9'.
x = 0

Simplifying
x = 0

See similar equations:

| 60g=4 | | 9x^2+90=0 | | 3x(3x-18)=180 | | 2x+15p=720 | | 2(9s+1)-12s=2(3s+2)-7 | | .25p-6=-8 | | -6x-8=44 | | 3x-(2x-2)=4+7x | | 3x+(6x+4)= | | 539+29276= | | (x+2)(x+3)=x(x)+5x+6 | | 2x+x(3x-18)=180 | | 3x-0=4+7x | | 10u+7=16u-32-9 | | -10+-4=-30 | | 9=4+.2q | | n*5=5 | | 7y+18=39 | | 15x-10=9z | | 18+9w-4w=3w-10 | | 15p+2x=720 | | 11x-2+6x=5x+24 | | x-5-.1x=12+.5x | | 4x-9=16-3 | | (x^3)-(2x^2)=9x-18 | | 6a=a+22 | | 6(11w+5)= | | 4(x+5)=2(x-2) | | a^2-12=8 | | 3(4x-5)=6(2x-4)+9 | | n(65)=40 | | 2x+7+8x=13 |

Equations solver categories