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

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Solution for (1+x)(2-x)-(3-x)(3+x)= equation:


Simplifying
(1 + x)(2 + -1x) + -1(3 + -1x)(3 + x) = 0

Multiply (1 + x) * (2 + -1x)
(1(2 + -1x) + x(2 + -1x)) + -1(3 + -1x)(3 + x) = 0
((2 * 1 + -1x * 1) + x(2 + -1x)) + -1(3 + -1x)(3 + x) = 0
((2 + -1x) + x(2 + -1x)) + -1(3 + -1x)(3 + x) = 0
(2 + -1x + (2 * x + -1x * x)) + -1(3 + -1x)(3 + x) = 0
(2 + -1x + (2x + -1x2)) + -1(3 + -1x)(3 + x) = 0

Combine like terms: -1x + 2x = 1x
(2 + 1x + -1x2) + -1(3 + -1x)(3 + x) = 0

Multiply (3 + -1x) * (3 + x)
2 + 1x + -1x2 + -1(3(3 + x) + -1x * (3 + x)) = 0
2 + 1x + -1x2 + -1((3 * 3 + x * 3) + -1x * (3 + x)) = 0
2 + 1x + -1x2 + -1((9 + 3x) + -1x * (3 + x)) = 0
2 + 1x + -1x2 + -1(9 + 3x + (3 * -1x + x * -1x)) = 0
2 + 1x + -1x2 + -1(9 + 3x + (-3x + -1x2)) = 0

Combine like terms: 3x + -3x = 0
2 + 1x + -1x2 + -1(9 + 0 + -1x2) = 0
2 + 1x + -1x2 + -1(9 + -1x2) = 0
2 + 1x + -1x2 + (9 * -1 + -1x2 * -1) = 0
2 + 1x + -1x2 + (-9 + 1x2) = 0

Reorder the terms:
2 + -9 + 1x + -1x2 + 1x2 = 0

Combine like terms: 2 + -9 = -7
-7 + 1x + -1x2 + 1x2 = 0

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

Solving
-7 + 1x = 0

Solving for variable 'x'.

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

Add '7' to each side of the equation.
-7 + 7 + 1x = 0 + 7

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

Combine like terms: 0 + 7 = 7
1x = 7

Divide each side by '1'.
x = 7

Simplifying
x = 7

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