Question

Change y=2x2−8x−42 to factored form
help me please thanks

Answer 1

Answer: y=(x-7)(x+3)

Explanation:

The equation given is
`y=2x^2-8x-42` Notice that 2 is a common factor, so we can divide each term by 2.

`y=x^2-4x-21` [factor]

`y=(x-7)(x+3)`

If we distribute the factored form above, we get the same equation. Therefore, y=(x-7)(x+3) is the factored form.