Question

(a+b)² = a²+ b²+ 2ab
$(2x + 3) {}^{2}$
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Answer 1

Answer:

4x²+9+12x

Step-by-step explanation:

(2x+3)²

=(2x)²+(3)²+2×2x×3  {(a+b)²=a²+b²+2ab}

=4x²+9+12x