Question

Qn no. 19
Evaluate.
2 a 2 + 3b 3 - 10 for a = 2 and b = -2
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Answer 1

Answer:

-26

Step-by-step explanation:

2a^2 + 3b^3 - 10

= 2(2)^2 + 3(-2)^3 -10

= 2(4) + 3(-8) - 10

= 8- 24 - 10

= 8 - 34

= -26

Answer 2

Answer:

2 ×2 ×2 + 3 ×-2×-2×-2 -10

6 + 14

20