Question
Factorize : x2−7x+12
Answer: Option A
:
A
We have to break up 7x in thegiven expression into two parts in such a way that their sum is 7x and the product of their coefficients is 12 .
x2−7x+12
=x2−4x−3x+12
=x(x−4)−3(x−4)
=(x−3)(x−4)
Thus x2−7x+12 can be factorised as (x−3)(x−4)
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:
A
We have to break up 7x in thegiven expression into two parts in such a way that their sum is 7x and the product of their coefficients is 12 .
x2−7x+12
=x2−4x−3x+12
=x(x−4)−3(x−4)
=(x−3)(x−4)
Thus x2−7x+12 can be factorised as (x−3)(x−4)
Was this answer helpful ?
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