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Anonymous
The measure of 7x + 27 depends on the value of x.
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abc = 38
(7x)(2x - 27) This means multiply the '7x' to each term in the other set of brackets. Hence 14x^2 - 189x
20 + 7x
(3b + 7x)(3b + 7x) or (3b + 7x)2
8y-7x