Question

factorise X square + 7 x + 12​

Answer 1

Step-by-step explanation:

X² + 7X +12

X² + 4X + 3X +12

X(X+4) + 3(X+4)

(X+4)(X+3)

for zeroes

either X+4=0. or. X+3=0

=> X=-4 OR -3

Answer 2

Answer:

x^2+7x+12

x^2+4x+3x+12

x(x+4)+3(x+4)

(x+4)(x+3)=0

x=-4, and,-3