Question

option :-a.
$x {2} - 3x + 21$
b.
$x2 - 10x + 21$
c.
$x {}^{2} - 7x - 21$
d.
$x {}^{2} - 10x - 21$
​

Answer 1

(x-7)(x-5)

x²- 5x -7x + 35

x² - 12x + 35

Hope it helps ❤

Answer 2

Step-by-step explanation:

2

x +(a+b)x + (a)(b) = (x+a)(x+b)

2

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

x×x -10x+21

2

SO THE ANSWER IS X - 10X +21

HOPE IT HELPS YOU....

THANKYOU....