Question

Splitting the middle term.

1) 3x^2-x-4

Answer 1

Answer:

Step-by-step explanation:

3x²-x-4

3x²-3x+4x-4

3x(x-1)+4(x-1)

(x-1)(3x-4)

Hence proved

Answer 2

Answer:

-1 and 4/3

Step-by-step explanation:

3x^2-x-4

3x^2-4x+3x-4

X(3x-4)+1(3x-4)

(X+1)(3x-4)

to find the root

(X+1)(3x-4)=0

X+1=0. and 3x-4=0

X=-1. and X=4/3