simplify the polynomial x2- 9
Answers
Answered by
0
Answer:
±3 .
Step-by-step explanation:
x² - 9 can be written as (x-3)(x+3) .
Which can be simplified into x = ±3 .
Answered by
0
x=-3 (or) x=+3
Step-by-step explanation:
=x²-9
=x²-3² is in the form of ( a²- b²)= (a+b) (a-b)
=(x+3) (x-3) =0
=x+3=0 (or) x-3=0
=x=-3 (or) x=+3
Similar questions