Answer
$(2a+b)(a+5b)$
Work Step by Step
$2a^2+11ab+5b^2$
Factors of 5: 1 and 5, -1 and -5
$(2a+b)(a+5b)$
$2a*a+2a*5b+a*b+b*5b$
$2a^2+10ab+ab+5b^2$
$2a^2+11ab+5b^2$
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