Justify if the expression1-7a3-2-3a2-4a-7 is polynomial-

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Standard VIII

Mathematics

Polynomial Expression

Justify if th...

Question

Justify if the expression $\frac{1}{7} a^{3} + \frac{2}{\sqrt{3}} a^{2} + 4 a - 7$ is polynomial.

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Solution

Solution.
Polynomial: An algebraic expression where the exponents of variables are all whole number.
The given expression is $\frac{1}{7} a^{3} + \frac{2}{\sqrt{3}} a^{2} + 4 a - 7$ ,
Here the exponents of variable $a$ is $3$ , $2$ and $1$ , which are all whole number.
Hence, the given expression is polynomial.

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Justify if the expression $\frac{1}{7} a^{3} + \frac{2}{\sqrt{3}} a^{2} + 4 a - 7$ is polynomial.