Question

A polynomial p(y) is given as 5y^40 +4y -1

Is -1 a zero of p(y)

Answer 1

Step-by-step explanation:

5 y to the power 40 plus 4 multiple1 -1

5+ 4 - 1

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Answer 2

-1 is zero of p(y).

Given:

A polynomial p(y) as $5y^{40} + 4y -1$.

To Find:

Is -1 a zero of p(y).

Solution:

Zeros of a polynomial can be defined as the points or values where the value of the polynomial becomes zero as a whole.

For the given polynomial -1 will be a zero if after putting the value of -1 in place of y the polynomial will give a result of 0.

p(y) = $5y^{40} + 4y -1$

p(-1) = $5(-1)^{40} + 4(-1) -1$

p(-1) = $5(1) - 4 -1$

p(-1) = $4 - 4$

p(-1) = $0$

Therefore, -1 is zero of p(y).

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