alleryExpand the algebraic expression (3x + 2y)^2.
A9x^2 + 12xy + 4y^2
B9x^2 + 6xy + 4y^2
C9x^2 + 12xy + 2y^2
D6x^2 + 12xy + 4y^2
Answer & Solution
Correct answer: A. 9x^2 + 12xy + 4y^2
Using the formula for squaring a binomial sum yields (3x)^2 + 2(3x)(2y) + (2y)^2 = 9x^2 + 12xy + 4y^2.
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