Question

Find the product: (3x + 4)(3x − 4)
9x^2 + 24x − 16
9x^2 + 16
9x − 16
9x^2 − 16

Answer 1

multiply it by foiling

Answer 2

okay well can u help

Answer 3

just foiling out

Answer 4

does this make sense @mikaa_toxica13

Answer 5

uhm there is no 9x^2 - 12 answer. only a 9x^2 - 16

Answer 6

sorry 4*-4 = -16

Answer 7

oh okay thank u. can u help with a few others ?

Answer 8

sure no problem

Answer 9

sorry im doing a few things at once, and at work right now so if it takes me a min to respond, dont worry

Answer 10

Factor Completely: x^2 + 25
(x + 5)(x + 5)
(x + 5)(x − 5)
(x − 5)(x − 5)
Prime

Answer 11

ok :)

Answer 12

so the easiest way to do this is to multiply out the factors you have there
you know that it needs to multiply out to a positive 25

Answer 13

okay. i think its B.

Answer 14

now also have you go over the list of items that are prime?

Answer 15

because if you multiply 5*-5 you get -25 not +25

Answer 16

oh

Answer 17

this factor is prime, im not sure if you were looking up or waiting for a responce but this one can not be factored

Answer 18

to justify this you can take the only one that will work, or rather come close, would be (x + 5)(x + 5) or (x − 5)(x − 5) and both of these would give you a middle term either -10x or +10x