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Quadratic Equations & Inequations Solve x^(4)-2x^(2)-63<=0

Solve x^(4)-2x^(2)-63<=0

Find the number of integers satisfying the following Inequalities x^(4)-2x^(2)-63<=0

x ^ (4) -2x ^ (2) -63 <= 0

x ^ (4) -2x ^ (2) -63) <= 0

Using factor theorem,factorize each of the following polynomials: 2x^(4)-7x^(3)-13x^(2)+63x-45

factors of (2x^(2)-3x-2)(2x^(2)-3x)-63 are:

A(4,0),B(-4,0) are two points.The locus of P which moves such that |PA-PB|=6 is (i)9x^(2)-7y^(2)+63=0 (ii) 9x^(2)+7y^(2)-63=0( iii) 9x^(2)+7y^(2)+63=0 (iv) 9x^(2)-7y^(2)-63=0