(x+9)(x-3)=x^2+2x+1

Simple and best practice solution for (x+9)(x-3)=x^2+2x+1 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+9)(x-3)=x^2+2x+1 equation:


Simplifying
(x + 9)(x + -3) = x2 + 2x + 1

Reorder the terms:
(9 + x)(x + -3) = x2 + 2x + 1

Reorder the terms:
(9 + x)(-3 + x) = x2 + 2x + 1

Multiply (9 + x) * (-3 + x)
(9(-3 + x) + x(-3 + x)) = x2 + 2x + 1
((-3 * 9 + x * 9) + x(-3 + x)) = x2 + 2x + 1
((-27 + 9x) + x(-3 + x)) = x2 + 2x + 1
(-27 + 9x + (-3 * x + x * x)) = x2 + 2x + 1
(-27 + 9x + (-3x + x2)) = x2 + 2x + 1

Combine like terms: 9x + -3x = 6x
(-27 + 6x + x2) = x2 + 2x + 1

Reorder the terms:
-27 + 6x + x2 = 1 + 2x + x2

Add '-1x2' to each side of the equation.
-27 + 6x + x2 + -1x2 = 1 + 2x + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-27 + 6x + 0 = 1 + 2x + x2 + -1x2
-27 + 6x = 1 + 2x + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-27 + 6x = 1 + 2x + 0
-27 + 6x = 1 + 2x

Solving
-27 + 6x = 1 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
-27 + 6x + -2x = 1 + 2x + -2x

Combine like terms: 6x + -2x = 4x
-27 + 4x = 1 + 2x + -2x

Combine like terms: 2x + -2x = 0
-27 + 4x = 1 + 0
-27 + 4x = 1

Add '27' to each side of the equation.
-27 + 27 + 4x = 1 + 27

Combine like terms: -27 + 27 = 0
0 + 4x = 1 + 27
4x = 1 + 27

Combine like terms: 1 + 27 = 28
4x = 28

Divide each side by '4'.
x = 7

Simplifying
x = 7

See similar equations:

| 11/20-12/35 | | (3j-1)/4=-7 | | sqrt(-3x-5)=x+3 | | 14x+6y= | | x=330000*141000 | | (3x-1)/4=-7 | | 18/6n=6/n | | 9x^2-32x+56=0 | | 7-4x+3x-2x-5+5x=20-2-3+10x | | 5r-7r+8= | | 9z+16=7x+14 | | 3x-1/4=-7 | | (2a-3b+4c)= | | sqrt(x+7)+5=x | | F=2+5x | | 9n^2+10n=11 | | 2a-3b+4c= | | P(4)=4x-1 | | -2x+5-3x+1=-4 | | 15+.11x=18+.8x | | 3+7n=2n+3 | | 4-5/2= | | 3/25-4/75 | | 105+35m= | | F=3+5x-1 | | P(4)=4(4)-1 | | 460=5(9a+2) | | -8(k+9)-(7k-3)=16k | | 3x-18+10=-1x-24 | | 10(x+4)=140 | | 7(y-9)=6(y-3) | | 4w+6=6w+(-4) |

Equations solver categories