I'm almost completely out of points. Pls answer this. I don't get it

Step-by-step explanation:

10. 2(x^2 + 6x + 5): factor out 2

2(x + 5)(x + 1)

After factoring out the 2, find the 2 numbers that multiply to get 5 and add to 6

5 + 1 = 6

5*1 = 5

x^2 = x * x

11. (x - 10)(x - 4)

12. (a - 8b)(a + 8b)

a^2 + 8ab - 8ab - 64b^2

First: a*a = a^2

Outside 8b*a = 8ab

Inside: -8b*a = -8ab

Last: -8b*8b= -64b^2

13cm

step-by-step explanation:

(apex)