1.

А - 6а + 8 = 0(а - 4) (а- 2) = 0how the second line derived​

Answer»

ANSWER:

First of all the question should have been "a^2 -6a +8"

It has Been Factorised by a method known as factorisation by splitting the middle term.

Step-by-step explanation:

Step 1: multiply the constant and the coefficient of the term which has a square in it.

Step 2: split the middle term as to get 8 in this case.

Step 3: in this question the middle term has been splitted into -4 and -2 .

so, if u multiply them u will get 8 and if u will add them u will get -6

Step 4: a^2-4a-2a+8. The middle term got splitted and we got this equation.

Step 5: Now we can take a common from the 1st two terms and -2 common from the LAST two terms. we get a(a-4)-2(a-4)

Step 5: now we will take (a-4) common and we will get (a-4)(a-2).

HOPE it Helps you.

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