" 21."9x^(2)-15x+6

Solve by the method of completing the square: (1) 9x^(2)-15x+6=0 (2) 5x^(2)-6x-2=0

Algorithm to find the solution of quadratic equation by completing the square: 9x^(2)-15x+6=0

Solve the quadratic equation 9x^(2)-15x+6=0 by the method of completing the square.

f(x^(2)+x)+2f(x^(2)-3x+2)=9x^(2)-15x AA x in R find f(2016) Find f:R rarr R ,such that f(x)+xf(1-x)=1+x AA x in R

Calculate the value of x in the following equation :- (i) x^(2)-5x+6=0 (ii) x^(2)-9x+20=0 (iii) x^(2)-15x+56=0 (iv) x^(2)-16x+63=0

Calculate the value of x in the following equation :- (i) x^(2)-5x+6=0 (ii) x^(2)-9x+20=0 (iii) x^(2)-15x+56=0 (iv) x^(2)-16x+63=0

Find the HCF of 15x^(2) + 8 x - 12, 3x^(2) + x - 2,3x^(2) - 2x , 9x^(2) - 12 x + 4

Factorise (i) x^(2)+9x+18 (ii) 6x^(2)+7x-3 (iii) 2x^(2)-7x-15 (iv) 84-2r-2r^(2)

Factorise (i) x^(2)+9x+18 " " (ii) 6x^(2)+7x-3 (iii) 2x^(2)-7x-15 " " (iv) 84-2r-2r^(2)