Question

factorise the polynomials x² - 9

Answer 1

(x+3)(x-3) are the factors

Answer 2

hey dear

here is your answer

Solution

a = x^2

b = -9

we use ( a^2 -b^2 ) it is a identity

( a+ b) ( a - b)

so

( x + 3) ( x - 3)

hence your answer is

( x + 3) ( x - 3)

hope it helps

thank you