Question

-3(xy-xraised to power 3),if x=-1,and y=-3

Answer 1

- 12

Explanation:

- 3(xy - x³) ← substitute x = - 1 , y = - 3 into the expression

= - 3((- 1)(- 3) - (- 1)³ )

= - 3(3 - (- 1))

= - 3(3 + 1)

= - 3 × 4

= - 12