Answer:
a)(2x+1)² - 3
4x² + 4x + 1 - 3
4x² + 4x - 2
4(-2)² + 4(-2) - 2
16 - 8 - 2
6 (final answer)
b) 4(3)² + 4(3) - 2
36 + 12 - 2
46 ( final answer)
c) 2(x²-3) + 1
2x² - 6 + 1
2(3)² - 5
18 - 5
13(final answer)
