Question

1) Evaluate each of the following algebraic expressions for x=2, y=-3, z = -2,
a=2, b = 3
i) 2a² + ab
ii) 2a + x^-y​

Answer 1

Answer:

1) 2×(2^2) + 2×3

(2×4) + 6

8 + 6 = 14

2) 2×2 + 2^-(-3)

4 + 8 = 12

Answer 2

i) 2a² + ab

a=2

b=3

so,

$2(2) \times 2 + (2) \times (3) \\ 4 \times 2 + (2) \times 3 \\ 8 + (2) \times 3 \\ (10) \times (3) \\ 30$