Question

Need help on this question, The expression (2x+1)^2 -2(2x^2 -1)

1) 4x+3
2) 3x+3
3) 3
4) -1

Answer 1

Its 3
(I hope this helps)

Answer 2

1) 4x+3

Explanation:

(2x+1)²-2(2x²-1)

((2x)²+2•2x+1)-(2•2x²-2)

(2²•x²+4x+1)-(4x²-2)