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Mathematics 7 Online
OpenStudy (anonymous):

Please Help. Reward = Medal!!!!!! Simplify (a^2 b^-2)^-3 * (a^-1 b^2)^-3

OpenStudy (anonymous):

Because they have the same exponents you can ignore those. Now you just have to multiply. What is a^2(a^-1)(b^-2)(b^2) ? ?

OpenStudy (anonymous):

When you are multiplying exponents, you just have to add them a^(2-1)b^(-2+2) All to the -3 power

OpenStudy (anonymous):

where did the -3s go

OpenStudy (anonymous):

so the answer is a^-3

OpenStudy (anonymous):

Correct :)

OpenStudy (anonymous):

thanks and can you help me on another one

OpenStudy (anonymous):

(3xy^3)^-2 * (9y)^2

OpenStudy (anonymous):

Multiply in the -2 and 2 3^-2(x^-2)(y^-6)(9^2)(y^2)

OpenStudy (anonymous):

Then simplify: (1/9)(x^-2)(y^-4)(81) = 9x^(-2)(y^-4)

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