Question

check whether 1 is the zero of the polynomial 9x^3-5x+20

Answer 1

Answer:

no 1 is not a zero of the following polynomial

Step-by-step explanation:

p(x)=9x^3 -5x+20

p(1)= 9(1)^3-5(1)+20

p(1)=9-5+20

p(1)=4+20

p(1)=24

24≠0

∴1 is not a zero of 9x^3 - 5x +20

Answer 2

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