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Determine the nature of roots of the quadratic equation x2 + 7x-6=0
Answers
Answered by
1
Step-by-step explanation:
x
2
+7x−6=0⇒x
2
+2.
2
7
x+(
2
7
)
2
−6−
4
49
=0.
(x+
2
7
)
2
−
4
73
=0.
(x+
2
7
)
2
−(
2
73
)
2
=0⇒(x+
2
7+
73
)(x+
2
7−
73
)=0
∴
x=−(
2
7+
73
)
or,
x=−(
2
7−
73
)
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