" 7."x^(2)-21x+90

x^2-21 x+90

Using remainder theorem, factorise : x^(3) + 7x^(2) - 21 x - 27 Completely and then solve x^(3) + 7x^(2) - 21 x - 27=0

If f(x) = 6x^(4) + 8x^(3) + 17x^(2) + 21x + 7 is divided by g(x) = 3x^(2) + 4x +1 , the remainder is ax + b . Find a and b.

A particle of mass 5 kg is placed in a field of gravitational potential v=(7x^(2)-21x)J//kg . Then its motion

Factorise x^(2)-21x+108 .

Factorise x^(2)-21x+108 .

Factorize each of the quadratic polynomials: x^(2)-21x+108

Divide x^(2)-4x-21 by x-7

If (x^(2)+4x-21) is divided by x+7 , then the quotient is

Prove that : 2x^(4) - 9x^(3) + 21x^(2) - 26x + 12 is completely divisible by 2x - 3.