Question

Jill eFind the value of the expression 4a4 − 2b2 + 40 when a = 2 and b = 7.

Answer 1

6

Explanation:

substitute the given values into the expression

4
`a^(4)` - 2b² + 40

= 4
`(2)^(4)` - 2(7)² + 40

= 4(16) - 2(49) + 40

= 64 - 98 + 40

= - 34 + 40

= 6