factories 3x²+ 7x+2 by splitting the middle term
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Answer: (3x + 1) (x + 2)
Step-by-step explanation:
Product of first and third term = 6.
Sum of the first and third term = 7x.
Factors = 6x + 1x.
= 3 + 6x + 1x + 2.
= 3x (x + 2) + 1 (x + 2).
= (3x + 1) (x + 2)
Answered by
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Answer:
Thanks ❤ for asking the question, here is the explanation:
in splitting the middle term method we have to split the middle in two half's such that the 2 half's add up to make the middle no. (here 7x) and on multiplying should give the multiple of corner digits (here 3 and 2)
so 3x² × 2 = 6x²
now we have to split 7x such that the addition of digits will give 7 and multiplication of digits give 6
so 7x will be split as (6+1) x.
as 6+1 = 7
and 6×1 =6
= 3x² + (6+1)x +2
= 3x² + 6x + 1x + 2
taking x common from (3x²+6x) and taking 1 common from (1x+2)
= 3x(x+2) +1(x+2)
= (3x+1) + (x+2) ans.
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