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Simplify each expression. Write answers using positive exponents.

a. (7x^2y^3)(-2xy)
b. (a^2b^3)^-1(a^2b^3)
c.(-4m^3)^2

4 answers

I will be happy to check your work.
c. -16m^6
a. -14x^3y^4 ??
a. correct
c. oops: (-4)^2 = +16
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