SOLUTION: Simplify each of these, expressing your answers with postive indices: a. (x^-4y^7/x^-2y^-5) / (x^3y^-6/x^-1y) b. 5(a^-4)^3b^-6/(a^2b^-1)^4 x 2a^7(b^-3)^2/a^-4b^-9 Coud you p

Question 187188: Simplify each of these, expressing your answers with postive indices:
a. (x^-4y^7/x^-2y^-5) / (x^3y^-6/x^-1y)
b. 5(a^-4)^3b^-6/(a^2b^-1)^4 x 2a^7(b^-3)^2/a^-4b^-9
Coud you please show all working out because we've only started working on these, and I'm finding them really hard.
Thanks in advance.
Answer by vleith(2983) (Show Source): You can put this solution on YOUR website!
a. First, convert so that all exponents are positive
Combine powers of like terms
Simplify
divide
multiply
Combine powers of like terms

b. 5(a^-4)^3b^-6/(a^2b^-1)^4 x 2a^7(b^-3)^2/a^-4b^-9
use the same process as shown above for this one with one extra step.
evaluate powers of powers first
Complete as done above, step by step
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