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CBSE Class 10 Answered

Find the zeros of the following quadratic polynomials and verify the relationship between the zeros and the coefficients. 1.  X²-3x-1 2. 2x²+4x-3 3.  5x²+7x+1 4.  X²+x+1
Asked by ankitabehera09dps | 10 Mar, 2020, 08:51: PM
answered-by-expert Expert Answer
straight x ² minus 3 straight x minus 1 equals 0
by space formula space method
straight x equals fraction numerator 3 plus-or-minus square root of 9 plus 4 end root over denominator 2 end fraction
sum space of space root space equals negative 3 equals fraction numerator negative open parentheses negative 3 close parentheses over denominator 1 end fraction equals fraction numerator negative straight b over denominator straight a end fraction
product space of space roots equals negative 1 equals straight c over straight a

similarly space for space other space examples
Answered by Arun | 14 Mar, 2020, 09:31: AM
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