Math! Ms.Sue Please
posted by Sarah
Evaluate: lx^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

Sarah
l (5)^2 l [( 5)  (2)] + [(5)^3 + (2)]
Ms.Sue i broke it down more! Hopefully that helps 
Reiny
just plug in the values x = 5 and y = 3
lx^2l (x  y) + (x^3 + y)
= 25 (53) + (125+3)
= 25(8) + (122)
= 322 
Sarahh
But the answer is suppose to be 202 and I don't know how to get that

Sarahh
And y is suppose to be 2

Reiny
check this later post
http://www.jiskha.com/display.cgi?id=1390271913
I missed that set of inside brackets.
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