Question

Evaluate the following when a=2 b=-3 and c=4:

5a -b2 +2c(a-b)
Select one:
a. 41
O b.-41
O c. 135
O d. 270

Answer 1

A. 41

Explanation:

5a - b² + 2c(a-b)

Put a = 2, b = -3, and c = 4.

5(2) - (-3)² + 2(4)(2-(-3))

Evaluate.

10 - 9 + 2(4)(2+3)

10 - 9 + 8(5)

10 - 9 + 40

1 + 40

= 41

Answer 2

`41`

Explanation:

Given that,

`a = 2 \\ b = - 3 \\ c = 4`

Let's solve now,

`5a - {b}^(2) + 2c(a - b) \\ 5 * 2 - ( { - 3}^(2) ) + 2 * 4(2 - ( - 3)) \\ 10 - ( - 3 * - 3) + 8(2 + 3) \\ 10 - 9 + 8 * 5 \\ 10 - 9 + 40 \\ 1 + 40 \\ = 41`