the answer is a negative and positive can make it to 0 by adding

I've done this a million times and I'm still getting 4 instead of 32. Are you sure you posted the coefficients?
Answer:
a. ⁴√x³
d. ¹²√x⁹
Step-by-step explanation:
First, simplify 9⁄12 to ¾. Then, according to the Definition of Rational Exponents [part II], ⁿ√aᵐ = aᵐ\ⁿ, you set your denominator equal to the root, and your numerator becomes your exponent, keeping your base INSIDE the radical.
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