Question

Solve by using factorization method x^2 -9= 0

Answer 1

Answer:

x^2- 9

;it is similar to the identity a^2 - b^2 =(a+b)(a-b)

so 9 = 3^2

then using identity 3 (x+3)(x-3) =0

when u solve this equation by transposing (x -3) to the rhs( right hand side)u get

(x+3)=0(x-3)

which is 0

so then transposing 3 to rhs becomes

x= -3

when u substitute this value instead of x u get 0

Step-by-step explanation:

x = -3

so,

((-3)+ 3)(-3 -3)

(0)(-6)

=0

mark this as BrainliestBrainliestplsssssssss..hope its clear and u can understand it

Answer 2

No need to use any identities to complicate the question. I did it so you could understand it easily. Just remember after removing √ sign, be sure to add +/- sign, then you're good to go.