Total no. of solution for

    2^x + 3^x + 4^x - 5^x   is

1 /  2/ 3/  or what

 

Ans:
Hello Student,
Please find answer to your question



For x value less than zero 5^xwill lay below
2^x+ 3^x+ 4^x
So there would be no solution less than zero.
Lets try greater than zero.
f(1) = 2 + 3 + 4 – 5 = 4
f(2) = 4 + 9 + 16 – 25 = 4
f(3) = 8 + 27 + 64 – 125 = -26