Question

verify 4/5 is zero of polynomial 5x3-4x2-5x+4​

Answer 1

Answer:

15-8-4+4=0

15-8=0

7 is not equal to zero

so 4/5 is not the zero of polynomial

Answer 2

Answer:

→P(4/5) = 5*4/5 - 4

=20/5 - 4

=4 - 4

= 0

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