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Unit 4: Exponents - Khan Academy

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2013年8月2日 · Start practicing—and saving your progress—now: https://www.khanacademy.org/math/cc-sixth-grade-math/x0267d782:...

2011年1月27日 · Some of the topics include linear equations, linear inequalities, linear functions, systems of equations, factoring expressions, quadratic expressions, exponents, functions, and …

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I had a question on my test to put - (4)^3 in expanded form. I put the answer as - (4)x- (4)x- (4). Would this be acceptable.