Question

Factorise: 2x² -7x -4

Answer 1

2x-7x-4x=0.875 the answer is 0.875 cause of the fact that seven and two are the ones with the varible

Answer 2

The terms in x must be 2x and x. The factors of -4 are either -4 and 1, -1 and 4, -2 and 2 or 2 and -2. Trying each of the combinations we get (2x + 1)(x - 4) as the solution.