Question

Value of the expression x 3 - 2y 2 + z , when x = -1 , y = 2 , z = 3 is

Answer 1

Answer:

-23

Step-by-step explanation:

We can evaluate the given algebraic expression by simplifying

the expression ,then substituting the values of

x

=x3−3x3−2y2+z4

=−2x3−2y2+z4

=−2(3)3−2(5)2+(−3)4

=−2×27−2×25+81

=−54−50+81

=−104+81

= -23