Question

f(x) = x^2 - 9

what is the answer

Answer 1

HEY buddy...!! here is ur answer

f(x) = x²–9

=> f(x) = (x)²–(3)²

=> f(x) = (x+3)(x–3)

[ As we know that : a²–b² = (a+b)(a–b) ]

I hope it will be helpful for you....!!

THANK YOU ✌️✌️

MARK IT AS BRAINLIEST

Answer 2

Answer:-

x= 3 or x= -3

$\mathsf{x^{2} -9}$ =0

$\mathsf{x^{2} -3^{2}=0}$

$\mathsf{(x+3)(x-3)=0}$

$\mathsf{x= -3\ or\ x= 3}$