Question

factorize : (x) 2 - 10x +21​

Answer 1

Answer:

the factors are 7 and 3.

Step-by-step explanation:

x^2 - 10x + 21

= x^2 - 7x -3x +21      (because:-3x-7x=-10x and (-3)(-7)=+21)

= x(x - 7) -3( x- 7)

= (x-7)(x - 3)

∴the factors are

x - 7 = 0

     x = 7

and

x - 3 = 0

    x = 3

PLEASE MARK ME THE BRAINLIEST;)

Answer 2

ans-x=3,x=7

explanation:

(x)2-10x+21

(x)2-3x-7x+21

x(x-3)-7(x-3)

(x-3) (x-7)

x=3

x=7