The number of real roots of `3^2x^2-7x+7=9` is (A) 0 (B) 2 (C) 1 (D) 4

Let a,b,c be three distinct positive real numbers then number of real roots of ax^2+2b|x|+c=0 is (A) 0 (B) 1 (C) 2 (D) 4

The number of real roots of equation x^8-x^5+x^2-x+1=0 is (A) 2 (B) 4 (C) 6 (D) 0

Number of real roots of equation f(x)=0 is (A) 0 (B) 1 (C) 2 (D) none of these

[ The number of real solutions of x^(2)-4|x|-2=0 is [ (a) 1, (b) 2 (c) 3, (d) 4]]

The number of real solutions of |2x-x^(2)-3|=1 is 0(b)2(c)3(d)4

Number of roots of the equation 3^2.x^2-7x+7= 9 is

The number of real roots of x^(10)-x^(7)+x^(5)+2x^(4)+6=0 is

The sum of real roots of the equation |x-2|^(2)+|x-2|-2=0 is (A)4(B)1(C)2(D)-2

The number of real roots of the equation x^(4)+x^(3)+2x^(2)+x+1=0 is