Question

If f(x) = x²+2x+5 and f(x) = f (2x+1) then x=​

Answer 1

Step-by-step explanation:

you just need to equate f(x) to f(2x+1)

for equation of f(2x+1) just put the 2x+1 in place of x in f(x) .

you will get the equation of 2x+1. then equate both and solve for x .

you can use two method

1. splliting the middle term
2. discriminent formula