Question

find the zero's of the polynomial p(x) equal to x square - 10 x + 21​

Answer 1

Ans:- x²-10x+21

= x²-3x-7x+21

= x(x-3) - 7(x-3)

= (x-3)(x-7)

hence x - 3 = 0

=> x = 3

=> x - 7 = 0

=> x = 7

hence 3 and 7 are the zeroes of the polynomials

here is your answer

hope it will help