Q. Express the following fraction in simplest form, only using positive exponents.6u−9h92(u−2h−1)−1Answer:
Simplify numerator: Simplify the numerator by applying the negative exponent rule.The negative exponent rule states that a−n=an1. We apply this rule to the numerator.(2(u−2h−1)−1)=u−2h−12
Simplify denominator: Simplify the denominator by applying the negative exponent rule.The negative exponent rule states that a−n=an1. We apply this rule to the denominator.6u−9h9=u9h−96
Combine numerator and denominator: Combine the numerator and denominator.We have u−2h−12 over u9h−96, which is a complex fraction. To simplify, we multiply the numerator by the reciprocal of the denominator.(u−2h−12)×(6u9h−9)
Multiply numerators and denominators: Simplify the expression by multiplying the numerators and denominators.(2⋅u9⋅h−9)/(u−2⋅h−1⋅6)
Apply exponent rule: Apply the exponent rule for multiplication, which states that am×an=am+n. 2×u9+(−2)×h−9+(−1)/6=2×u7×h−10/6
Simplify fraction: Simplify the fraction by dividing both the numerator and the denominator by their greatest common divisor, which is 2.(62)⋅u7⋅h−10 = (31)⋅u7⋅h−10
Apply negative exponent rule: Apply the negative exponent rule to h−10 to express it with a positive exponent.(31)⋅u7⋅(h101)
Combine terms: Combine the terms to express the final answer. (31)⋅u7/h10
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