Question

factorise the following by splitting the middle term 3 - 4 x minus 7 x square​

Answer 1

Answer:

Given:

$3 -4x - 7 x^2$

Solution:

$\implies 3 - 4x - 7x^2$

$\implies -7x^2 - 4x +3$

$\implies -7x^2 -7x + 3x +3$

$\implies -7x(x +1) + 3(x + 1)$

$\boxed{\implies{\boxed{ (x+1)(3-7x)}}}$

Answer 2

Answer:

X =3/7 or X = -1

Step-by-step explanation:

• -7x²-4x+3
• -7x²-7x+3x+3
• -7x(x+1)+3(x+1)
• (X+1) (3-7x)
• so X=-1
• or X= 3/7

hope it helps☺️