In Problems 2330, multiply mentally. a. C. (5x 4)(5x+4) (a + 2) b. (3y - 2) (3y
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In Problems 23–30, multiply mentally.
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a. C. (5x 4)(5x+4) (a + 2) b. (3y - 2) (3y +2) d. (b-2)
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