Question

Evaluate (x3 − 15) − (y + 6) for x = 4 and y = 1.

Answer 1

The answer to the function is -10

Answer 2

42

Explanation:

Open the bracket first

(X3-15)-(y+6)

X3-15-y-6

Collect like terms

X3-y-15-6

X3-y-21

And x is said to be 4,y to be 1

So let's substitute

(4)^3-(1)-21

64-1-21

64-22

42

Therefore the final answer is 42