Question

factorize
(a-4)a-a+4​

Answer 1

Answer:

(a-4)(a-1)

Step-by-step explanation:

keeping the (a-4)a part as it is...

and taking -1 common from the rest we get

(a-4)a+(-1)(a-4) ---- (i)

Now taking (a-4) common from (i)

we get the answer :

(a-4)(a-1)

Answer 2

Answer:

( a - 4 ) ( a - 1 )

Step-by-step explanation:

a ( a - 4 ) - a + 4

a^2 - 4a - a + 4a

a ( a - 4 ) - 1 ( a - 4)

( a - 4 ) ( a - 1 )

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