Consolidation: Expressing Answers in Positive Index Notation

Consolidation: Expressing Answers in Positive Index Notation

Secondary 3

Simplify each of the following, giving your answer in positive index notation.

  1. \(5{{a}^{4}}\times 3{{a}^{-3}}\div {{a}^{-3}}\)
  2. \({{\left( 2b \right)}^{0}}\div \left[ 4{{\left( {{b}^{-2}} \right)}^{2}} \right]\)
  3. \({{\left( -3{{c}^{2}}{{d}^{-2}} \right)}^{2}}\times {{\left( -2{{c}^{-1}}d \right)}^{3}}\)
  4. \(\frac{e{{f}^{3}}}{4}\div {{\left( \frac{2}{{{e}^{2}}{{f}^{-1}}} \right)}^{-3}}\)
  5. \(\frac{{{\left( {{g}^{3}}h \right)}^{2}}\times {{g}^{-3}}h}{{{\left( {{g}^{-1}}h \right)}^{-2}}}\)
  6. \(\frac{15{{p}^{2}}{{q}^{-3}}}{{{\left( 3{{p}^{3}} \right)}^{2}}}\div {{\left( {{p}^{2}}q \right)}^{-1}}\)

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Answer:(i) \(15a^4\). (ii) \(\frac{b^4}{4}\). (iii) \(-\frac{72c}{d}\). (iv) \(\frac{2f^6}{e^5}\). (v) \(gh^5\). (vi) \(\frac{5}{3p^2q^2}\).

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