ace-holmes
ace-holmes
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When expanding brackets, use the FOIL method, which stands for First, Outer, Inner, Last. First: y * y = y^2 Outer: y * (-8) = -8y Inner: y * 8 = 8y Last: 8 * (-8) = -64 The 8y and the -8y cancel each other out to get 0, and therefore your …
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When expanding brackets, use the FOIL method, which stands for First, Outer, Inner, Last. First: y * y = y^2 Outer: y * (-8) = -8y Inner: y * 8 = 8y Last: 8 * (-8) = -64 The 8y and the -8y cancel each other out to get 0, and therefore your …