Question

If f(x) = x2 + 2x – 1, find f(1). Answer:

Answer 1

Answer:

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

= 2

Answer 2

Answer:

f (x) = 2

Step-by-step explanation:

f (x) =

${x}^{2} + 2x - 1$

now,

f(1) =

=》

$1 {}^{2} + (2 \times 1) - 1$

=》

$1 + 2 - 1$

=》

$2$