Question

how would i solve this? w^2=9

Answer 1

what do you think?

Answer 2

would i need to get it to this w^2-9=0?

Answer 3

good, then?

Answer 4

that's where i get confused. would it be (w-1)(w+9)

Answer 5

nope, apply \[a^2 -b^2= (a+b)(a-b)\]your a is w and your b is 3

Answer 6

so its (w+3)(w-3) that makes sense.

Answer 7

yup

Answer 8

then?

Answer 9

w=-3 and w=3

Answer 10

medal for you

Answer 11

thank you!!!

Answer 12

yw