" 13.If "x=(7+5sqrt(2))," then "(x^(2)+(1)/(x^(2)))=?

If x=(1)/(2-sqrt(3)), find the value of x^(3)-2x^(2)-7x+5

Evaluate : x^(3)+3x-13, " if" x=root(3)(7+5sqrt(2))-(1)/(root(3)(7+5sqrt(2)))

If x=(7+5sqrt(2))^(1/3) -1/((7+5sqrt(2))^(1/3) , then the value of x^3+3x-14 is equal to 1 (b) 0 (c) 2 (d) 4

If x=1/(2-sqrt(3)), find the value of x^3-2x^2-7x+5

If x=1/(2-sqrt(3)), find the value of x^3-2x^2-7x+5

If x=1/(2-sqrt(3)), find the value of x^3-2x^2-7x+5

which of the following expressions are polynomials ? Justify your answere, (i) 8 (ii) sqrt(3x)^(2)-2x (iii) 1-sqrt(5x) (iv) (1)/(5x^(-2))+5x+7 (v) ((x-2)(x-4))/(x) (vi) (1)/(x+1) (vii) (1)/(7)a^(3)-(2)/(sqrt(3))a^(2)+4a-7 (viii) (1)/(2x)

If x = sqrt(7)+(1)/(sqrt(7)) , then the value of (128)^(x^(2)) is-

(1) sqrt(2)x^(2)+7x+5sqrt(2)=0

If x=(7+5sqrt(2))^(1/3)-1/((7+5sqrt(2))^(1/3)) , then the value of x^3+3x-14 is equal to 1 b. 0 c. 2 d. 4