find the zeroes and verify the relationship between zeroes and the co-efficient x^2-2x-35
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Answer:
x2-2x-35=0
x2-7x+5x-35=0
x(x-7)+5(x-7)=0
x=7 or x=-5
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x^2-2x-35=0
x^2-7x+5x-35=0
x(x-7)+5(x-7)=0
(x-7)(x+5)=0
x=7 or x=-5
Let alpha and beta be 7 and -5 respectively
alpha+beta=-b/a
7+-5=-(-2)/1
2=2
Hence verified
alpha*beta=c/a
7*-5=-35/1
-35=-35
Hence verified
x^2-7x+5x-35=0
x(x-7)+5(x-7)=0
(x-7)(x+5)=0
x=7 or x=-5
Let alpha and beta be 7 and -5 respectively
alpha+beta=-b/a
7+-5=-(-2)/1
2=2
Hence verified
alpha*beta=c/a
7*-5=-35/1
-35=-35
Hence verified
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