The following expressions are polynomials? Justify your answer:
$\frac{1}{5 x^{-2}}+5 x+7$
The following expressions are polynomials? Justify your answer:
$\frac{1}{5 x^{-2}}+5 x+7$
$\frac{1}{5 x^{-2}}+5 x+7=\frac{1}{5} x^{2}+5 x+7$
In each term of this expression, the exponent of the variable $x$ is a whole number.
Hence, it is a polynomial.
Similar Questions
Find the value of $m$ so that $2 x-1$ be a factor of $8 x^{4}+4 x^{3}-16 x^{2}+10 x+m.$
Find the value of $m$ so that $2 x-1$ be a factor of $8 x^{4}+4 x^{3}-16 x^{2}+10 x+m.$
Factorise
$9 x^{2}+42 x+49$
Factorise
$9 x^{2}+42 x+49$
Evaluate $66 \times 74$ without directly multiplying
Evaluate $66 \times 74$ without directly multiplying
Using suitable identity, evaluate the following:
$103^{3}$
Using suitable identity, evaluate the following:
$103^{3}$
Factorise :
$x^{2}+9 x+18$
Factorise :
$x^{2}+9 x+18$