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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
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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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CBSE 10 - Maths
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ABCD is a rectangle in which diagonal AC is equals to 17 cm angle BCA is equals to thitha and sin theta is equals to 8/17 find the area of rectangle ABCDE (ii) the perimeter of rectangle ABCD
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CBSE 10 - Maths
if one of the zeroes of quadratic polynomial F(x) = 4x² - 8kx - 9 is equal in magnitude but opposite in sign, find K
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CBSE 10 - Maths
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CBSE 10 - Maths
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CBSE 10 - Maths
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The distance of the point (5,-2) from x-axis will be :-
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