Question

The value of the
polynomial 9x4 + 3x2 - 4
when x= - 2 is"​

Answer 1

Answer:

9x4+3x2-4

(9)(-2)(4)+(3)(-2)(2)-4

-72-12-4

-88.

Answer 2

Answer:

9x⁴+3x²-4

when x=-2

9(-2)⁴+3(-2)²-4

=9×16+3×4-4

=144+12-4

=156-4=152