Respuesta :
Answer:
92
Step-by-step explanation:
Substitute the given values for a and b into the expression.
2a² + 5b²
= 2 ×(- 6)² + 5 × 2²
= (2 × 36) + (5 × 4) = 72 + 20 = 92
- We are given the algebraic expression in the question: 2a²+5b²
Where: a = -6 and b = 2
- Hence, we carry out substitution
- We susbstitute -6 for a and 2 for b in the algebraic expression
2 x ( -6)² + 5 x 2²
= 2 x 36 + 5 x 4
= 72 + 20
= 92
Therefore, the value of 2a²+5b² is 92
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