Question

Root of equations x²-9=0 are
(a)√3
(b)-√3
(c)9
(d)±3

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Answer 1

Answer:

Solution

x

2

−9=0

x

2

=9

x=±3

Answer 2

Answer:

this is the correct option of that questions because x²-9=0

x²=9

x=√9

x=√3×3

x=±3