Question

Find x if f(x) = 1 + x - x2 and f(x + 1) = f(x+2)​

Answer 1

Answer:

x = 1.6

this is ur answer

Answer 2

Answer:

f(x) = 1 + x - x2 and f(x + 1) = f(x+2)

(1 + x+1- (x+1)^2 ) = (1 + x+2 - (x+2)^2)

( 1- (x+1)^2 ) = (2 - (x+2)^2)

( - x^2 - 1 - 2x ) = (1 - x^2 - 4 - 4x)

( - 1 - 2x ) = (1 - 4 - 4x)

( - 1 ) = (- 3 - 2x)

2x = - 2

x = - 1