Question

Simplify the expression and find its value when a = 5 and b=-3.
2(a² + ab) + 3 - ab​

Answer 1

Answer:

38

Step-by-step explanation:

Given , a = 5 and b = -3

2(a² + ab) + 3 - ab

= 2 { (5)² + (5)(-3) } + 3 - (5)(-3)

= 2 (25 + (-15) + 3 - (-15)

= 2 ( 25 - 15 ) + 3 + 15

= 2 × 10 + 18

= 20 + 18

= 38.