Question

7x squre - 98x + 336 middle term krke koi btao plz emergency​

Answer 1

7x^2-98x+336

divide equation by 7

x^2-14x+48=0

x^2-12x-4x+48=0

x(x-12)+4(x-12)=0

(x-12)(x+4)=0

x=12 OR x=-4

hope it helpu

Answer 2

Given :-

7x² - 98x + 336

taking 7 as common, we get

⇒ x² - 14x + 48 = 0

steps to follow for splitting the middle term :-

• multiply the coefficient of the first and last term.

• find the pairs of multiples.

• choose one pair which makes the coefficient of the middle term either by addition or subtraction. use trial and error method.

⇒ x² - (8x + 6x) + 48 = 0

⇒ x² - 8x - 6x + 48 = 0

⇒ x(x - 8) - 6(x - 8) = 0

⇒ (x - 8) (x - 6) = 0 final answer.

if you want to find it roots. then equate both the factors with zero.

x = 8 , x = 6