SOLUTION: 7x3(3 is exponent)(3x3y)2(exponent is 2) − x(x4y)2(exponent is 2) I have asked 3 tutors for help with this and every answer they have helped me arrive at has been wrong. Can

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: 7x3(3 is exponent)(3x3y)2(exponent is 2) − x(x4y)2(exponent is 2) I have asked 3 tutors for help with this and every answer they have helped me arrive at has been wrong. Can      Log On


   

Question 425228: 7x3(3 is exponent)(3x3y)2(exponent is 2) − x(x4y)2(exponent is 2)
I have asked 3 tutors for help with this and every answer they have helped me arrive at has been wrong. Can you please walk me through the correct process?
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
7x3(3 is exponent)(3x3y)2(exponent is 2) − x(x4y)2(exponent is 2)
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First, let me make sure I am copying the problem right as I think it is:
(7x^3)(3x3y)^2-x(x4y)^2
=(7x^3)(81x^2y^2)-x(16x^2y^2)
=567x^5y^2-16x^3y^2
=(x^3y^2)(567x^2-16) (ans: if I copied it right)