The Maths School

Class 10th - Can you answer these two questions on polynomials?

1. Sum of zeroes of a quadratic polynomial = ??

2. Product of zeroes of quadratic polynomial = ??

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Interesting way to calculate square of numbers ending with 5

Square of 15

Just multiply first digit by next number and suffix it with 25

So , 1 x 2 = 2 , suffix 25 , answer will be 225.

Square of 25

2 x 3 = 6 , suffix 25 , answer 625.

Square of 35

3 x 4 = 12 , suffix 25 , answer 1225.

Who says maths is not interesting !

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