Question

Square of (3a + 5b) is…..​

Answer 1

Step-by-step explanation:

$3 + 5 = 8$

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Answer 2

Answer:

Using identity 2 a -b = a^2) - 2sub + (b^2)

3a - 5b = (3a)^2-(2×3a×5b) +(5b)^2

= 9(a^2)-30ab + 25(b^2)

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