Heathurrr
contestada

I don’t get how the answer is one..
not sure how to factor/reduce what I was able to reduce to equal 1

Did I do something wrong

I dont get how the answer is one not sure how to factorreduce what I was able to reduce to equal 1 Did I do something wrong class=

Respuesta :

Answer:

see explanation

Step-by-step explanation:

Factorise the numerators on both fractions

a² + 10a + 25 = (a + 5)(a + 5) ← perfect square

a² - 25 = (a - 5 )(a + 5) ← difference of squares

To divide, leave the first fraction, change division to multiplication and turn the second fraction upside down.

Hence

= [tex]\frac{(a+5)(a+5)}{a+5}[/tex] × [tex]\frac{a-5}{(a-5)(a+5)}[/tex]

Cancel both the (a + 5) factors on the numerator/ denominators and the (a - 5) factor on the numerator/denominator, leaving

= 1 ← as required

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