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Q. The HCF of the polynomials $x^4+6 x^2+25, x^3-3 x^2+$ $7 x-5$ and $x^2+5-2 x$ is:

Polynomials and Square Roots of Algebraic Expressions

Solution:

(i) Factorize the polynomials.
(ii) Find the HCF of the first two polynomials.
(iii) Now find the HCF of the third polynomial and HCF of the first two pol $\gamma$ nomials.