Question

13)The expression - 5x3 + 3 is a​

Answer 1

Answer:

it is binominal

Step-by-step explanation:

binominal

as it has 2operators ( - and +)

if answer is wrong, please tell.me correct answer

Answer 2

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$The \: expression \: : \: 5x {}^{3} + 3 \: is \: a \:$

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This is a cubic polynomial

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• What is a Cubic Polynomial?

A cubic polynomial is a polynomial of degree three, i.e., the highest exponent of the variable is three.

Some examples:

$p(x) \: : \: 3 {x}^{3} - 6{x}^{2} + 9x - 4 \: \: ,a≠0$

$q(y) \: : \: 27 {y}^{3} - 1,a≠0$

$r(z) \: : \: \pi {z}^{3} + (\sqrt{2} ) {}^{10},a≠0$

We observe that a cubic polynomial can have at the most four terms. A cubic polynomial, in general, will be of the form

$p(x) \: : \: a {x}^{3} + b{x}^{2} + cx + d \: \: ,a≠0$

Once again, the constraint that a should not be equal to 0 is required because if a is 0, then this becomes a quadratic rather than a cubic polynomial.

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