Which of the following expressions is considered a monomial?
- 3 x2 + 4 x – 5
x2 y
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In the expression –2 x5, the coefficient is
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2 x2 + 3 x2 =
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8 a – 3 a – (–2 a) – (–3 a) =
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- ( x2 y)4
- (6 x)(4 y)
- ( x3 y2)2
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(6 x2 y2)(9 xy3) =
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–2(–3 x2 y)(–4 xy3) =
- –24 x3 y4
- 72 x3 y4
- –24 x2 y3
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(2 xy3 z4)5 =
- 10 x5 y15z20
- 32 x5 y8z9
- 32 x5 y15z20
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- –4 x6 y6
- –4 x4 y2
- –4 x10 y18
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- xy
- –2 x5 y6
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Each of the following simplifies to x–3 except
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3–2 x3 y–3 expressed with only positive exponents is
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(4 a–2 b3)(–2 a3 b–4) expressed with only positive exponents is
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