Question

use the identity to find
$(3a - 2)^{2}$
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Answer 1

Answer:$\implies(3a-)^{2} \\ \implies (3a)^{2}-2×(3a×2)+(2)^{2} \\ \implies 9a^{2}-12a+4 \\ \implies 3a(2a+4)+4$__________________________