posted by Sarah

Evaluate: l-x^2l (x - y) + (x^3 + y) If x + 8 = 3 and y = 3_
\l 8
Is the answer -202? I did it in the calculator but forgot how to work it out

1. Sarah

l -(-5)^2 l [( -5) - (-2)] + [(-5)^3 + (-2)]
Ms.Sue i broke it down more! Hopefully that helps

2. Reiny

just plug in the values x = -5 and y = 3

l-x^2l (x - y) + (x^3 + y)
= |-25| (-5-3) + (-125+3)
= 25(-8) + (-122)
= -322

3. Sarahh

But the answer is suppose to be -202 and I don't know how to get that

4. Sarahh

And y is suppose to be -2

5. Reiny

check this later post
http://www.jiskha.com/display.cgi?id=1390271913

I missed that set of inside brackets.

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