expand the squares of the following 1 _. 5a+3b

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Solution

Dear Student,

${(5 a + 3 b)}^{2} = {(5 a)}^{2} + {(3 b)}^{2} + 2 (5 a) (3 b) (u \sin g {(a + b)}^{2} = a^{2} + b^{2} + 2 a b) = 25 a^{2} + 9 b^{2} + 30 a b$
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