а - 6а + 8 = 0
(а - 4) (а- 2) = 0
how the second line derived
Answers
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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Answer:
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