Answer:
7. -16
8. -24
Explanation:
In order to evaluate the expression, just substitute the given value in the expression.
So,
In this case:
x = -2
y = 3
7. 3x - 10
Substitute the given value:
= 3× -2 -10
= -6 - 10
= -16
8. 4(y-5)²+x³+4x
Substitute the given value:
= 4(3-5)+(-2)³+4(-2)
= 4(-2)-8-8
= -8 -16
= -24
Therefore, the answer of 7 is -16 and 8 is -24.