SOLUTION: Simplify: (-3b^4c^-1)(2b^-7c^-8) / 42b^-5c^4 Please show me step by step to get the answer. thanks

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Simplify: (-3b^4c^-1)(2b^-7c^-8) / 42b^-5c^4 Please show me step by step to get the answer. thanks      Log On


   

Question 474772: Simplify:
(-3b^4c^-1)(2b^-7c^-8) / 42b^-5c^4
Please show me step by step to get the answer. thanks
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
These are all similar.
Do it like this one.
Email me if you want me to check your work.
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%282b%5E-7c%5E4%29%5E4+%2F+5%5E-1b%5E2c%5E6+
= 16b%5E-28c%5E16+%2F+5%5E-1b%5E2c%5E6
= 80b%5E-28c%5E16+%2F+b%5E2c%5E6
Multiply by b%5E28%2Fb%5E28
= 80c%5E16+%2F+b%5E30c%5E6
Cancel c^6
= 80c%5E10+%2F+b%5E30