.Number of solutions of equation `2^x + 2^(x-1) + 2^(x-2) = 7^x + 7^(x -1) + 7^(x-2)` is

Solve : 2^x + 2^(x-1) + 2^(x-2) = 7^x + 7^(x-1) + 7^(x-2)

The Number of real roots of equation 2^x + 2^(x-1)+2^(x-2) =7^x + 7^(x-1)+7^(x-2) is

Number of real roots of the equation 2^x+2^(x-1)+2^(x-2)=7^x+7^(x-1)+7^(x-2) is (A) 4 (B) 2 (C) 1 (D) 0

Number of real roots of the equation 2^x=2^(x-1)+2^(x-2)=7^x+7^(x-1)+7^(x-2) is (A) 4 (B) 2 (C) 1 (D) 0

number of real solutions of the equation x^(2)+4x+7=0 are

The number of solutions of the equation log _((x + 1)) ( 2x ^(2) + 7x + 5) + log _( ( 2x + 5)) (x +1) ^( 2) -4 =0, x gt 0, is ______.

The number of solutions of sqrt(3x^2 -7x -30) - sqrt(2 x^2 -7x-5) = x-5 is

Number of solutions to the equation 2^(sin^(2)x)+5.2^(cos^(2)x)=7, in the interval [-pi,pi], is