Question

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Answer 1

$1. \:( \frac{ {7}^{4} }{10} ) \div ( \frac{ {7}^{2} }{10}) = {?}$

$= \frac{7}{10}^{4 - 2}$

$= \frac{ {7}^{2} }{10}$

$= \frac{49}{100}$

$2. \: {3}^{2}( {5}^{2})^{2}$

$={3}^{2}(5^{2 \times 2} )$

$= {3}^{2} \times {5}^{4}$

$3. \: ( - 7)^{1} \times ( { - 7}^{0})$

$= ( - 7) \times 1$

$= (- 7)$

$4. \: h{}^{2} \times {h}^{11} {k}^{9}$

$= {h}^{2} \times k \times {h}^{11} \times {k}^{9}$

= h²+¹¹ × k¹+⁹

= h¹³ × k¹⁰