Question

any body factorise x^2 -9​

Answer 1

Answer:

x2-9=x2-32=(x+3)(x-3)

a2-b2=(a+b)(a-b)

Answer 2

Answer:

${x}^{2} - {3 }^{2} \\=( x + 3)(x - 3)$

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