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Since both terms are perfect squares, factor using the difference of squares formula, a2 −b2 = (a+b)(a−b) a 2 - b 2 = (a + b) (a - b) where a = x a = x and b = y b = y. Free math problem …

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To solve a system of equations by elimination, write the system of equations in standard form: ax + by = c, and multiply one or both of the equations by a constant so that the coefficients of one of the variables are opposite. Then, add or subtract the …

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Cancel the common factor of x−y x - y. Tap for more steps... Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations, just like a math tutor.

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2015年7月7日 · It can be factored as: #x^2 - y^2 = (x-y)(x+y)# Explanation: Notice that when you multiply #(x-y)# by #(x+y)# then the terms in #xy# cancel out, leaving #x^2-y^2# ...