Im so confused please help!

x2 + 3x = x • (x + 3)

1.1 Factoring x2+7x-6

The first term is, x2 its coefficient is 1 .

The middle term is, +7x its coefficient is 7 .

The last term, "the constant", is -6

Step-1 : Multiply the coefficient of the first term by the constant 1 • -6 = -6

Step-2 : Find two factors of -6 whose sum equals the coefficient of the middle term, which is 7 .

-6 + 1 = -5

-3 + 2 = -1

-2 + 3 = 1

-1 + 6 = 5