. If a and B are the zeros of the polynomial f(x) = 5x - 7x +1, find the
value of (a + b)
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Answer:
the value of a + b is equals to a square + b square minus 2 a b + b square
Step-by-step explanation:
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If α and β are the zeroes of 5x
2
−7x+1=0. Find the value of
α
1
+
β
1
.
Hard
Solution
verified
Verified by Toppr
Sum of the roots=α+β=
5
7
Product of the roots=αβ=
5
1
α
1
+
β
1
=
αβ
α+β
=
5
1
5
7
=
5
7
×5=7
∴
α
1
+
β
1
=7
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