Question

Simplify fully, does anyone know ?

Answer 1

Answer:

see explanation

Step-by-step explanation:

Using the rule of exponents

$\frac{a^{m} }{a^{n} }$ = $a^{(m - n)}$ , then

(a)

$\frac{x^{7} }{x^{3} }$ = $x^{(7-3)}$ = $x^{4}$

(b)

$\frac{y^{5} }{y^{4} }$ = $y^{(5-4)}$ = $y^{1}$ = y

Answer 2

Here's an explanation! :)