3 years ago

Help me factor x^2 + 9

Mathematics

1 answer:

Goryan [66]3 years ago

6 0

x 2 + 9 has no (Real) factors (Unlike x 2 − 9 )

Explanation:

The most you could do with this is use the quadratic formula on

XXXX x 2 + 0 ⋅ x + 9

to get

XXXX ± 3 i

So you could factor using Complex values:

XXXX x 2 + 9 = ( x + 3 i ) ( x − 3 i )

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