Question

`\frac{5x {}^(8) }{20x {}^(7) }`
when x = 3 and y = 5

Answer 1

3/4

Explanation:

5x^8

-----------

20 x^7

5/20 =1/4

x^8/x^7 When dividing exponents with the same base, we subtract the exponents

x^(8-7)

x^1

so

5x^8

-----------

20 x^7

= 1/4 x

Let x =3

1/4 *3

3/4