Question

(2a+3b)²+8(2a+3b) +15​

Answer 1

$\huge\red{SOLUTION:-}$

★ Answer:-

→ 4a² + 12ab + 9b² + 16a + 24b + 15

★ Step-by-step explanation:-

(2a + 3b)² + 8(2a + 3b) + 15

= (2a)² + 2(2a)(3b) + (3b)² + 16a + 24b + 15

▶ 4a² + 12 ab + 9b² + 16a + 24b + 15

[The required solution]

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$<marquee>★Hope it helps★$

Answer 2

Step-by-step explanation:

$= (2a + 3b) {}^{2} + 8(2a + 3b) + 15 \\ = (2a) { }^{2} + 2 \times 2a \times 3b + (3b) {}^{2} + 16a + 24b + 15 \\ = 4a {}^{2} + 12ab + 9b {}^{2} + 16a + 24b + 15$