Question

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

Answer 1

2(-5^2+-5*-3)+3-ab

2(25+15)+3-(-5-3)

2(40)+3+5-3

80+5

85

Answer 2

First, let us simplify the expression

2(a² + ab) + 3 - ab

2a² + 2ab + 3 - ab

2a² + ab + 3

Substituting the values in the expression

a = 5

b = 3

2a² + ab + 3

2 (5)² + (5)(3) + 3

2 (25) + 15 + 3

50 + 15 + 3

65 + 3

68

Hope it helps..