Question

Algebra 2 Question

19. If P(x) = 2x^4 - 5x^2 + 3x -9, then P(6) is

A.) -3
B.) 2439
C.) -2421
D. 2421

Answer 1

$\text{Given that,}\\\\P(x) = 2x^4 -5x^2 +3x -9\\\\P(6) = 2\cdot 6^4 -5 \cdot 6^2 +3 \cdot 6 -9 \\\\~~~~~~~=2592-180+18-9\\\\~~~~~~~=2421\\\\\text{Hence the answer is option D.}$