Determine the nature of the roots of 3x²-2x+6=0?
Answers
Answered by
0
Answer:
ANSWER
We have,
3x
2
−2x−6=0
Since, x
1
and x
2
are the roots of above equation
∴x
1
+x
2
=
3
−(−2)
=
3
2
And x
1
x
2
=
3
−6
=−2
Now,
(x
1
+x
2
)
2
=x
1
2
+x
2
2
+2x
1
x
2
⇒x
1
2
+x
2
2
=(x
1
+x
2
)
2
−2x
1
x
2
=(
3
2
)
2
−2(−2)
=
9
4
+4=
9
40
Answered by
1
Answer:
Hey there!
Factorise
We can solve it with
i) quadratic formula and
ii) completing the square method.
Solve the quadratic equation ax²+bx+c =0 using
By completing the square method,
Hope it helps!
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