Question

$\huge \mathbf \purple{please \: \: answer \: \: it}$

$\huge \mathbf \red{thanku}$
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​

Answer 1

I)

${ (- 4)}^{5} \times { - 4}^{8}$

As base is same then power will add

${( - 4)}^{5 + 8} = { - 4}^{13}$

II)

${ - 3}^{4} \times (\frac{5}{3})^{4} \\ {3}^{4} \times \frac{ {5}^{4} }{ {3}^{4} } \\ = {5}^{4}$

III) (3^-7 ÷3^ -10) × 3^-5

$( { 3}^{ - 7} \div {3}^{ - 10} ) \times {3}^{ - 5} \\ ({3}^{7} \times {3}^{10}) \times {3}^{ - 5}$

As base is same so powers will add

${3}^{17} \times {3}^{ - 5} \\ {3}^{17 - 5} \\ {3}^{12}$

MARK AS BRAINLIEST.