SOLUTION: If x=-2, then 3x (to the 2nd power)-5x-6=?

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Question 567419: If x=-2, then 3x (to the 2nd power)-5x-6=?
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
3x^2-5x-6


3(-2)^2-5(-2)-6


3(4)-5(-2)-6


12+10-6


16


So 3x^2-5x-6 = 16 when x = -2