When x= C3, the expression C2x 2 + 3x C 7 =:

When x= C3, the expression C2x 2 + 3x C 7 =:
A . C34
B . C27
C . C16
D . C10
E . 2

View Answer

Answer: A

Explanation:

Substitute C3 for x:

C2 × (C3) 2 + 3 × (C3) C 7 = C 2 × 9 C 9 C 7 = C18 C 16 = C34