expand (2x+3y)^2AND (X-5y)^2
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Answer:
(2x+3y)² = (2x)² + (3y)² + (2)(2x)(3y)
= 4x² + 9y² + 12xy
(x-5y)² = (x)² + (-5y)² + (2)(x)(-5y)
= x² + 25y² - 10xy
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