Math, asked by mahi410, 1 year ago

answer the question 3 it's argent please

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Answered by piyushkumarpk222

0

$4a^{2} + 9{b}^{2} = (2a)^{2} + {(3b)}^{2} + 12ab - 12ab = (2a + 3b)^{2} - 12ab = 7^{2} - 12 \times 2 = 49 - 24 = 25 \:$

mahi410: it's rong answer is 25

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