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Find zeroes of v²+4√3v-15Also verify relationship …

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Find zeroes of v²+4√3v-15Also verify relationship between the zeroes and the coefficient
  • 1 answers

Sia ? 6 years ago

The given quadratic polynomial is:

  v2 + 43v - 15

By factorizing it we have
   v2 + 43v - 15  = v2 + 53v - 3v - 15
= v(v + 53) - 3(v + 53)
 = (v - 3)(v + 53)

For zeroes, put the factors equal to zero i.e., 

(v - 3)(v + 53) = 0
v=3,53 are zeroes of the polynomial.

Verification: In the given polynomial a = 1, b =  43 and c =  - 15
Now Sum of the zeroes = 3+(53)=43
Also sum of zeroes = baba=43a=43
And product of zeroes = 3×53= -15
Also, product of zeroes = ca=151=15

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