7. Evaluate:-(fg^)º
A. -1
B. 1
C. f5g4
D. 9
D. y6
8. Which of the following is NOT equivalent to y ?
A. y .y B. y4 • y? C. (73)2
9. If bx • b12 = bº , find x.
A. 21
B.-21
C.-3
D. 3
10. Evaluate : x + 3-1 - 32
A. -3/23 B. 23/3
C. 3 / 23
D.-23/3
11. Which of the following is NOT a special product?
A. (3x + 5 ) (3x - 5) B. (m+3)(m+3) C. (m. 6) (m. 6) D. (x-2)(x-2)(x-2)​