SOLUTION: Hi! I am completely stuck (doing homework) and could use a hand, please! Problem: 3x^3-5x^2-15 for x=3 I came up with: 3(3)^3-5(3)^2-15 3x27-5x9-15 81-45-15 solution = 21

SOLUTION: Hi! I am completely stuck (doing homework) and could use a hand, please! Problem: 3x^3-5x^2-15 for x=3 I came up with: 3(3)^3-5(3)^2-15 3x27-5x9-15 81-45-15 solution = 21

Algebra.Com

Question 248438: Hi!
I am completely stuck (doing homework) and could use a hand, please!
Problem:
3x^3-5x^2-15 for x=3
I came up with:
3(3)^3-5(3)^2-15
3x27-5x9-15
81-45-15
solution = 21
Am I close?
Thank you!!
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
You are correct.
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