SOLUTION: a=3,b=5,and c=9 2a(b^2-2b)-2c= Correct answer is 73 how? 2x3(5x5-2x5)-2x9 6(25-10)-18 6(15)-18 6x15=90-18=72 not 73. Thank you so much for your help.

Algebra ->  Exponents -> SOLUTION: a=3,b=5,and c=9 2a(b^2-2b)-2c= Correct answer is 73 how? 2x3(5x5-2x5)-2x9 6(25-10)-18 6(15)-18 6x15=90-18=72 not 73. Thank you so much for your help.      Log On


   

Question 234274: a=3,b=5,and c=9
2a(b^2-2b)-2c= Correct answer is 73 how?
2x3(5x5-2x5)-2x9
6(25-10)-18
6(15)-18
6x15=90-18=72 not 73.
Thank you so much for your help.
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
2(3)(5^2-2*5)-2(9)
6(25-10)-18
6(15)-18
90-18=72
I get the same answer you do.
Bob