write the polynomial of 3x²+5x-7
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Answer:
Given equation is 3X
2
+5X−7=0
Here, a=3, b=5 and c=−7
α and β will be
2a
−b±
b
2
−4ac
=
6
−5±
109
So, (
3α+5
1
)
2
=
(5+
109
)
2
4
(
3β+5
1
)
2
=
(
109
−5)
2
4
After Adding above two function, we get
4(
(5+
109
)
2
1
+
(
109
−5)
2
1
)=4×
(109−25)
2
2×(109+25)
=
441
67
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