Chapter 5 - Review - Page 406: 103

$9x^2-42x+49$

Work Step by Step

A binomial squared is equal to the square of the first term plus or minus twice the product of both terms plus the square of the second term. $(a - b)^2= a^2 - 2ab + b^2$ $(3x-7)^2=(3x)^2-2(3x)(7)+7^2=9x^2-42x+49$

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