PSAT Math Grid-Ins Question 47: Answer and Explanation
Question: 47
What is the exponent on x when the expression above is written in simplest form?
Correct Answer: 8
Explanation:
8
Difficulty: Hard
Category: Passport to Advanced Math/Exponents
Getting to the Answer: Read the question carefully to determine what part of the expression you need to simplify and what part you don't. Sometimes, you can work a simpler question and still arrive at the correct answer. The question only asks for the exponent on x, so you do not have to simplify the coefficients. Rewrite the expression without the coefficients and simplify using the rules of exponents:
The exponent on x is 8.
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