Question

factorise :x square+7x+12

Answer 1

Answer:

x² + 7x + 12

= x²+(4x+3x) +12

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

= (x+4)(x+3)

Answer 2

Answer:

given x²+7x+12

Step-by-step explanation: by factorisation ,we get

⇒x²+4x+3x+12 = 0

⇒x[x+4]+3[x+4]= 0

⇒[x+3] [x+4]=0

⇒x+3=0    and    x+4=0

⇒x = -3     and    x=-4

∴ x= -3 and -4

hopefully !this will helps you :)