Question

X²-10x+21
Can anybody tell me the ans step by step please..... ​

Answer 1

Answer:

x = 3 and x = 7

Step-by-step explanation:

x² - 10x + 21

x² - 7x - 3x + 21

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

(x - 7)(x - 3)

x - 7 = 0

x = 7

x - 3 = 0

x = 3

I hope this answer is helpful for you.

Answer 2

Step-by-step explanation:

x^2 - 10x + 21

x^2 - 7x - 3x + 21

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

( x - 7 ) ( x - 3 )

x = 7 , 3