2×(3×+4)= (3×+2)(×+4)=

1. =2x×3x+2x×4
=6x^2+8x
2. =(3x×x+3x×4)+(2×x+2×4)
=3x^2+12x+2x+8
=3x^2+14x+8

2 × (3x + 4) = (3x + 2) (x + 4) =
6x + 8 = (3x + 2) (x + 4)
6x - 3x - x = 8 - 2 + 4
2x = 10
x = 10/2
x = 5