Question

TWO TEST
23. Evaluate 4b2 for b
= -1/2

Answer 1

-4

Explanation:

4b x 2 when b = -1/2

1) put -1/2 where b is.

4 x -1/2 x 2

2) solve.

-2 x 2

-4

Answer 2

4b² when b = -1/2

`= {4( ( - 1)/(2))}^(2) \\ = 4( (1)/(4)) \\ = (4)/(4) \\ = 1`