Question

फैक्टराइज द सॉन्ग
$16a ^{2} - (4a + 1)^{2}$
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Answer 1

Answer:

61 Is right answer ok.?

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Answer 2

Step-by-step explanation:

$16a {}^{2} - (4a {}^{2} + 1) {}^{2} \\ = 16a {}^{2} - ((4a) {}^{2} + 2 \times 4a \times 1 + (1) {}^{2} ) \\ = 16a {}^{2} - (16a {}^{2} + 8a + 1) \\ = 16a {}^{2} - 16a {}^{2} - 8a - 1 \\ = - (8a + 1)$

I hope this helps