Can someone explains what happens here?

In first step it's taking out common multiple, which is 2.

For example: 2(x+y) is same thing as 2x + 2y.

In second step, it's reduce to common fraction.

For example: 2/4 is same thing as 1/2.

//Hope it helps.

do it yourself this is easy

step-by-step explanation:

step-by-step explanation:

x-intercept:

(

−

1

+

√

7

,

0

)

,

(

−

1

−

√

7

,

0

)

y-intercept:

(

0

,

−

6

)