-4.2x - 6y + 3.6
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To expand the expression 7x(7y) using the distributive property, you distribute the 7x to both terms inside the parentheses. This results in 7x * 7y = 49xy. The distributive property allows you to multiply each term inside the parentheses by the term outside the parentheses, simplifying the expression.
Yes.
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Assume the expression is (x - 13)², and assume you want to expand it. Note that (a - b)² = a² - 2ab + b². Then: (x - 13)² = x² - 2(13x) + 13² = x² - 26x + 169
You can expand the first expression in parentheses, then add or subtract like terms.