Question

How do you write `5x^2 -7 +2x = 7` in vertex form?

Answer 1

In vertex form : `5(x+0.2)^2-14.2 =0`

Explanation:

`5x^2 -7 +2x -7=0 or 5x^2 +2x -14=0 or 5(x^2+2/5x)-14=0`

or
`5(x^2+2/5x + 1/25) - 5/25 -14 =0 or 5(x+1/5)^2 - 14.2 =0 or 5(x+0.2)^2-14.2 =0`
Vertex : `( -0.2,-14.2)`
In vertex form : `5(x+0.2)^2-14.2 =0` graph{5x^2+2x-14 [-40, 40, -20, 20]} [Ans]