(1+x)(1-x)=15

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Solution for (1+x)(1-x)=15 equation:


Simplifying
(1 + x)(1 + -1x) = 15

Multiply (1 + x) * (1 + -1x)
(1(1 + -1x) + x(1 + -1x)) = 15
((1 * 1 + -1x * 1) + x(1 + -1x)) = 15
((1 + -1x) + x(1 + -1x)) = 15
(1 + -1x + (1 * x + -1x * x)) = 15
(1 + -1x + (1x + -1x2)) = 15

Combine like terms: -1x + 1x = 0
(1 + 0 + -1x2) = 15
(1 + -1x2) = 15

Solving
1 + -1x2 = 15

Solving for variable 'x'.

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

Add '-1' to each side of the equation.
1 + -1 + -1x2 = 15 + -1

Combine like terms: 1 + -1 = 0
0 + -1x2 = 15 + -1
-1x2 = 15 + -1

Combine like terms: 15 + -1 = 14
-1x2 = 14

Divide each side by '-1'.
x2 = -14

Simplifying
x2 = -14

Reorder the terms:
14 + x2 = -14 + 14

Combine like terms: -14 + 14 = 0
14 + x2 = 0

The solution to this equation could not be determined.

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