SOLUTION: Which one of the following is the correct method for evaluating the expression: 3x^2-5 for x=7? thanks

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Question 238781: Which one of the following is the correct method for evaluating the expression:
3x^2-5 for x=7?
thanks
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
3x^2-5 for x=7?
First take care of the powers(7^2))
3*49-5 Next multiply
147-5 Then subtract
142 ans.