Find `x` , if `(2/5)^(-3)x\ (2/5)^(15)=(2/5)^(2+3x)^(\ )`

Find x: (2/5)^(2x+6)xx(2/5)^3=(2/5)^(x+2)

Find dy/dx if : y=1-2((5x)/(3x+2))^(2)+((5x)/(3x+2))^(3)

Find dy/dx , if y = 1-2((5x)/(3x+2))^2 +((5x)/(3x+2))^3

Solve :(2)/(5)x-(5)/(3)x=(1)/(15)

Solve: 2/(5x)-5/(3x)=1/(15)

Solve: 2/(5x)-5/(3x)=1/(15)

Find x and y if ((3x+4y,x-2y),(5,-3))=((2,4),(5,-3)) .

Find the value of x:((2^(x))/(5^(x)))-:((5)/(2))^((-(x+3)))=((2)/(5))^(x+6)

Find the LCM and HCF of the following polynomials 36(x +2)^(2) (x-1)^(3) (x +3)^(5), 45 (x +2)^(5) (x -1)^(2) (x +3)^(5) and 63 (x -1)^(5) (x +2)^(5) (x +3)^(4)

The factors of x^4-x^2-10x-25 are (a) (x^2+3x+5)(x^2-3x+5) (b) (x^2+3x+5)(x^2+3x-5) (c) (x^2+x+5)(x^2-x+5) (d) none of these