Question

How do you evaluate x2+2x−1 when x=2?

Answer 1

2 ^ 2 + 2 × 2 - 1
4 + 4 - 1
8 - 1
7
MARK AS BRAINLIST

Answer 2

x^2+2x-1

putting up the value of x

(2)^2+2(2)-1

4+4-1

8-1

7 is the answer