Question

What is the answer of (3a+4b)^2

Answer 1

Answer:

9a^2+16b^2+24ab

Step-by-step explanation:

(3a+4b)^2

we use (a+b)^2= a square + b square +2ab

3a^2+4b^2+2×3a×4b

9a^2 +16b^2+24ab

the answer is this

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Answer 2

(3a + 4b )²

By using (a+b)² = a² + 2ab + b²

= (3a)² + 2 (3a)(4b) + (4b)²

= 9a² + 24ab + 16b²

.°. (3a + 4b)² = 9a² + 24ab + b²