help me out please .............
x^2-√3x-6
Answers
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Answer:
x=3±17−−√2,3±21−−√2
Step-by-step explanation:
By adding 9 to both sides of the equation to obtain:
(
x
2
+
3
x
+
9
)
+
6
=
9
now
(
x
+
3
)
2
=
9
−
6
=
3
(
x
+
3
)
2
is a perfect square
Taking the 'square root' of both sides :
√
(
x
+
3
)
2
=
√
3
hence x + 3 = ±
√
3
so x = ±
√
3
−
3
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