Question

Quick anyone know the answer to this problem?

Answer 1

Answer Is D change dived to multiple

Answer 2

D

Explanation:

Factor the numerators/ denominators

10 - 5 = 5(2a - 1) ← common factor of 5

4a² - 1 = (2a - 1)(2a + 1) ← difference of squares

[ Change ÷ to × and turn second fraction upside down ]

=
`(2a+1)/(5(2a-1))` ×
`((2a-1)(2a+1))/(10a)`

[ cancel the factor (2a - 1) on the numerator/denominator ] leaving

=
`((2a+1)^2)/(5(10a))` =
`((2a+1)^2)/(50a)`