SOLUTION: If x = –1 and y = 2, what is the value of the expression 2x3 – 3xy ?
A. 8
B. 4
C. –1
D. –4
E. –8
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Question 336578: If x = –1 and y = 2, what is the value of the expression 2x3 – 3xy ?
A. 8
B. 4
C. –1
D. –4
E. –8
Answer by edjones(8007) (Show Source): You can put this solution on YOUR website!
x=-1, y=2
2x^3-3xy
=2(-1)^3-(3*-1*2)
=(2*-1)-(-6)
=-2+6
=4
.
Ed
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