5x^(2)-2x-10=0

Solve each of the following equations for x and give, in each case, your answer correct to 2 decimal places : (i) 2x^(2)-10x+5=0 (ii) 4x+(6)/(x)+13=0 (iii) x^(2)-5x-10=0

The biquadratic equation, two of whose roots are 1+i , 1-sqrt(2) is A) x^(4)-4x^(3)+5x^(2)-2x-2=0 B) x^(4)-4x^(3)-5x^(2)+2x+2=0 C) x^(4)+4x^(3)-5x^(2)+2x-2=0 D) x^(4)+4x^(3)+5x^(2)-2x+2=0

Evaluate lim_(x rarr2)[(2x^(2)-9x+10)/(5x^(2)-5x-10)]

Evaluate: lim_(x rarr 2) [(2x^(2)-9x+10)/(5x^(2)-5x-10)] .

If the equation (a-5)x^(2)+2(a-10)x+a+10=0 has roots of opposite sign,then find the value of a .

The roots of the equation 5x^(2)+10x-7=0 are

The roots of the equation 5x^(2)+10x-7=0 are

The power ofthe centre of x^(2)+y^(2)-8x+4y-10=0 with respect to 5x^(2)+5y^(2)+4x+2y-1=0 is

if x^(2)-5x+1=0, then (x^(10)+1)/(x^(5)) has the value