Question

Which expression is equivalent to 15x^-3z^5/3x^7z^-5 please answer spr fast

Answer 1

Answer:

Step-by-step explanation:

Answer:

5^4

Answer 2

Answer:

$5x^{-10}z^{10$

Step-by-step explanation:

Given

$\frac{15x^{-3}z^5}{3x^7z^{-5}}$

Required

Evaluate

$\frac{15x^{-3}z^5}{3x^7z^{-5}}$

Start by dividing 15 by 3

$\frac{5x^{-3}z^5}{x^7z^{-5}}$

Apply the following law of indices on indices x and z

$\frac{a^m}{a^n} = a^{m-n$

So, the expression becomes:

$5x^{-3-7}z^{5-(-5)$

$5x^{-3-7}z^{5+5$

$5x^{-10}z^{10$