Question

7-x-3x²
By spliting middle term​

Answer 1

Answer:

Let p(x) = 3x2 + 7x + 2 Here we have to split middle term of p(x) i.e. 7 into two parts such that their sum is 7 and product is 2 x 3 = 6. 6 and 1 are such numbers whose sum is 7 and product is 6 ∴ 3x2 + 7x + 2 = 3x2 + 6x + x + 2 = 3x(x + 2) + 1(x + 2) = (x + 2)(3x + 1)Read more on Sarthaks.com - https://www.sarthaks.com/775745/factorise-by-splitting-middle-term-i-3x-2-7x-2

Answer 2

p(x) = 3x^2+7x+2

= 3x^2+6x+x+2

= 3x(x+2)+1(x+2)

= (x+2) (3x+1)

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