Question

factorise using splitting the middle term

1.2x²+7x+3
2.3x²-x-4​

Answer 1

Step-by-step explanation:

1)

2x² + 6x + 1x + 3 = 0

→ 2x(x + 3) + 1(x + 3) = 0

→ (2x + 1)(x + 3) = 0

→ 2x + 1 = 0

→ 2x = -1

→ x = -1/2

2)

3x2 - X-4

3x2-4x + 3x -4

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

(3x -4) (x+1)

Answer 2

Answer:-

1.2x²+7x+3

=2x²+1x+6x+3

=x(2x+1)+3(2x+1)

=(2x+1)(X+3)

2.3x²-x-4

=3x²-4x+3x-4

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

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