Step-by-step explanation:
Just substitute the values of a and b
2a^2 + 3b^3 - 10
2x2^2 + 3 x (-2)^3 - 10
= 2 x 4 + 3 x (-8) - 10
= 8 - 24 - 10
= 8 - 34
= -26
Answer:
- 26
Given
2a² + 3b³ - 10 ← substitute a = 2, b = - 2 into the expression
= 2(2)² + 3(- 2)³ - 10
= 2(4) + 3(- 8) - 10
= - 16 - 10
= - 26
