Question

what are the roots of the quadratic equation x2=9?​

Answer 1

Answer:

X²-9

= by a2 -b2 property

x²-3²

(x+3)(x+3)

=(x+3)(x+3)

x=-3 ,-3 it hasEqual AND SAME ROOTS

Step-by-step explanation:

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Answer 2

Answer:

Answer: x = −3 or 3. One way to solve the quadratic equation x2 = 9 is to subtract 9 from both sides to get one side equal to 0: x2 – 9 = 0. The expression on the left can be factored: (x + 3)(x – 3) = 0.