p(w)=4(w)^3-3w-4; find p(-4) and p(1/4)

Answer 1

p( - 4 )= 4 * ( - 4 ) ^ 3 - 3 * ( - 4 ) - 4 =

4 * ( - 64 ) + 3 * 4 - 4 =

-256 + 12 - 4 = - 248

p( 1 / 4 )= 4 * ( 1 / 4 ) ^ 3 - 3 * ( 1 / 4 ) - 4 =

4 * 1 / 64 - 3 / 4 - 4 =

4 / ( 4 * 16 ) - 3 / 4 - 4 =

1 / 16 - ( 3 * 4 ) / ( 4 * 4 ) - ( 4 * 16 / 16 ) =

1 / 16 - 12 / 16 - 64 / 16 =

- 75 / 16

Answer 2

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