1.

(3a+4b)² substitute this answer​

Answer»

ong>Answer:

9a²+24ab+16b²

Step-by-step EXPLANATION:

(3A +b4b)²

[ (a + B)² = a² + 2AB + b² ]

(3a)² + 2×(3a)×(4b) + (4b)²

9a² + 24ab + 16b²



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