Plzz help if right i give brainliest

b. (x+6)(x-6)

Step-by-step explanation:

x^2-36  So to get to this answer you can do two things

1. Guess and check

2. Factor it out (which is what I like to do)

In order to get x^2 you need 2xs that are positive which knocks out c and d

Then to get to -36, you need to multiply a positive 6 and a negative 6

(This was poorly explained but if you need anymore help just lmk)

b. astronomers

1e+27

step-by-step explanation: