Question

Factorise:-
${x}^{2} \: - \: 4$
by using algebraic identity:-
${a}^{2} \: - \: {b}^{2} = (a + b)(a - b)$
kindly don't spam...​

Answer 1

Answer:

x²-2²

Step-by-step explanation:

x²-2²=(x+2)(x-2)

(x²-4)=(x+2)(x-2)