Question

What is the value of 12(a • b + a2) + 6 if a = 3 and b = −4?

A: −30
B: −42
C: −54
D: 330

Answer 1

Answer: -30 ==> A

Explanation:

a = 3 and b = −4

12(a • b + a2) + 6=

12(a • b + a^2) + 6=

12(3 • (-4) + 3^2) + 6=

12(-12 + 9) + 6=

12(-3)+6=

-36+6=

-(36-6)=-30 ==> A

Answer 2

a) -30

Explanation:

Given that,

→ a = 3

→ b = -4

Let's solve the problem,

→ 12(a × b + a²) + 6

→ 12(3 × -4 + (3)²) + 6

→ 12(-12 + 9) + 6

→ 12 × -3 + 6

→ -36 + 6 = -30

Hence, the answer is -30.