Question

9a^2+16b^2
pls send fast​

Answer 1

Answer:

$9 {a}^{2} + 16 {b}^{2} \\ = {3}^{2} {(a)}^{2} + {4}^{2} {(b)}^{2} \\ = {(3a)}^{2} + {(4b)}^{2} \\ = {(3a)}^{2} + {(4b)}^{2} + (2 \times 3a \times 4b) \\ = 9 {a}^{2} + {16b}^{2} + 24ab \\ \large{ \boxed{= \underline{ \underline{{(3a + 4b)}^{2} }}}}$