Question

Yeah... i dont know how to factor polynomials.
Factor.

v^2 – 16

Answer 1

v^2 - 16 can be written as v^2 - 4^2
The formula for a^2 - b^2 is (a+b)(a-b)
So the expression can be factored as (v+4)(v-4)

Answer 2

Did you know this formula?

Answer 3

Oh I assume thats part of the fundementals of factoring polynomials, thanks!

Answer 4

v^2-16
use perfect square rule which is a^2 - b^2 = (a+b)(a-b)
=(v-4)(v+4)
so when you expand it will become v^2 -4v + 4v -16.

Answer 5

No I didnt.

Answer 6

Hmm I see.

Answer 7

You should memorise some basic formulae of factorization before solving questions.

Answer 8

Will do.

Answer 9

That's to check its right the -4v will be cancelled out by the +4v leaving v^2 - 16.

Answer 10

oh thats cool , thanks guys!

Answer 11

Your welcome :)