Question

Factorise
x2 + 4x + 3

Answer 1

Answer:

x2 + 4x +3

x2 + 3x + x + 3

x( x + 3 ) + 1 ( x + 3 )

( x + 3 ) ( x + 1 )

Answer 2

Answer:

x= -1 , -3

Step-by-step explanation:

x2 + 4x + 3 = 0

Sum= 4

Product= 3

Numbers= 3 , 1

x2 + 3x + x + 3 = 0

x(x+3) + 1(x+3) = 0

(x+1)(x+3) = 0

x+1=0 , x+3=0

x=-1 , x=-3

Hope you find it helpful!