Question

(3x+5)^2
$(3x + 5)^{2}$
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Answer 1

Answer:

9x² + 25 + 30x

Step-by-step explanation:

let a=3x and b=6

$(a + b) {}^{2} = a {}^{2} + b {}^{2} + 2ab \\ = (3x) {}^{2} + 5 {}^{2} + 2 \times 3x \times 5 \\ = 9x {}^{2} + 25 + 30x$