Question

what technique would be best applied to factor the polynomial below.
x^2-25

Answer 1

(a^2-b^2)

Answer 2

here a=x and b=25

Answer 3

(a^2-b^2)=a^2-2ab+b^2 use this

Answer 4

this is a form of quadratic and is the product of 2 binomials
also its difference of 2 squares as qib as indicated
plug in values of a and b and you've got it

Answer 5

so you have to group them?

Answer 6

actually b = 5 not 25

Answer 7

a^2 - b^2 = (a - b)( a + b)

Answer 8

yeah sorry b=5

Answer 9

im sorry this is the right formula
a^2 - b^2 = (a - b)( a + b)

Answer 10

so its grouping?

Answer 11

a^2 - b^2 = (a - b)( a + b)
(x)^2-(5)^2=(x-5)(x+5)

Answer 12

ok