(18-x)(15+x)=266+3x-x^2

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Solution for (18-x)(15+x)=266+3x-x^2 equation:


Simplifying
(18 + -1x)(15 + x) = 266 + 3x + -1x2

Multiply (18 + -1x) * (15 + x)
(18(15 + x) + -1x * (15 + x)) = 266 + 3x + -1x2
((15 * 18 + x * 18) + -1x * (15 + x)) = 266 + 3x + -1x2
((270 + 18x) + -1x * (15 + x)) = 266 + 3x + -1x2
(270 + 18x + (15 * -1x + x * -1x)) = 266 + 3x + -1x2
(270 + 18x + (-15x + -1x2)) = 266 + 3x + -1x2

Combine like terms: 18x + -15x = 3x
(270 + 3x + -1x2) = 266 + 3x + -1x2

Add '-3x' to each side of the equation.
270 + 3x + -3x + -1x2 = 266 + 3x + -3x + -1x2

Combine like terms: 3x + -3x = 0
270 + 0 + -1x2 = 266 + 3x + -3x + -1x2
270 + -1x2 = 266 + 3x + -3x + -1x2

Combine like terms: 3x + -3x = 0
270 + -1x2 = 266 + 0 + -1x2
270 + -1x2 = 266 + -1x2

Add 'x2' to each side of the equation.
270 + -1x2 + x2 = 266 + -1x2 + x2

Combine like terms: -1x2 + x2 = 0
270 + 0 = 266 + -1x2 + x2
270 = 266 + -1x2 + x2

Combine like terms: -1x2 + x2 = 0
270 = 266 + 0
270 = 266

Solving
270 = 266

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

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