Question

What are the factors of x²-9 ?​

Answer 1

factors are

(x + 3) ( x - 3)

Answer 2

Answer:

$\bf \: we \: know \: that \: {a^2} - {b^2} = \left( {a + b} \right)\left( {a - b} \right)a </p><p>$$\begin{gathered} \begin{array}{l} \bf= {x^2} - 9\\ \bf = {x^2} - {3^2}\end{array}\end{gathered}$

$\bf \: \left( {x + 3} \right)\left( {x - 3} \right)=(x+3)(x−3)$

Hence the factors are

$\bf \left( {x + 3} \right)\left( {x - 3} \right)(x+3)(x−3)$

Step-by-step explanation:

Hope it helps ✌️