Question

Someone help me please

Answer 1

`(-20d^3t^2)/(v^5)`

Explanation:

The applicable rules of exponents are ...

(a^b)(a^c) = a^(b+c)

a^-b = 1/a^b

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`(4d^2t^5v^(-4))(-5dt^(-3)v^(-1))=(4)(-5)d^((2+1))t^((5-3))v^((-4-1))\\\\=\boxed{-20d^3t^2v^(-5)=(-20d^3t^2)/(v^5)}`