Question

Simplify 3a(a²+7) +2(a+3) and find its value for a=2​

Answer 1

Step-by-step explanation:

Given, Value of a = 2

putting the values in the expression

$3 \times 2( {2}^{2} + 7) + 2(2 + 3)$

$6(4 + 7) + 2(5)$

$6(11) + 10$

$66 + 10$

$76$

your answer is exactly 76