Question

Factorise the following expression x2 - 10 x + 21​

Answer 1

Step-by-step explanation:

x²+10x+21

x²+(7+3)x+21

x²+7x+3x+21

x(x+7)+3(x+7)

(x+7)(x+3)

Answer 2

Answer:

bro here is the answer , although it was very simple...