Which of the following is a monomial?

Identify monomial, binomial, trinomial or polynomial in the following.

$x^2+y^2+z^2+2xy+2yz+2zx$.

$-6{\mathrm{a}}^2{\mathrm{bc}}^3$ is a _____.(Monomial, binomial, trinomial)

Identify $-8 xyz$ as monomial, binomial or trinomial .

$2x +3y$ is a _____ . (monomial, binomial, trinomial)

Identify monomial, binomial and trinomial and polynomial from following.

${\mathrm{x}}^3+x$

Identify monomial, binomial, and trinomial in the following: $9p^2{q}^2{r}^2$

Identify monomial, binomial and trinomial and polynomial from following.

$p^2+q^2+r^2+2pq+2qr+2rp$

Identify monomial, binomial, and trinomial in the following.

$7p^2-3q^2$.

Identify $3x^2+5y^2$ as  monomial, binomial or trinomial.

$3x^2+5y^2$

Identify monomial, binomial and trinomial and polynomial from following.

$8{\mathrm{x}}^2\mathrm{yz}$

How many trinomials are there?

(i) $4y-7z$

(ii) $x+y-xy$

(iii) $7mn$

(iv) $z^2-3z+8$

(v) $1+x+x^2$

Identify monomial, binomial and trinomial and polynomial from following.

$9x+2y$

Identify monomial, binomial and trinomial and polynomial from following.

$5{\mathrm{x}}^2+19\mathrm{xy}-3{\mathrm{y}}^2$

Identify monomial, binomial and trinomial and polynomial from following.

$8\mathrm{xa}+b$

Identify monomial, binomial, and trinomial, and polynomial from following.

$8\mathrm{xy}\times \mathrm{mn}\times 3$

Identify monomial, binomial, and trinomial in the following.

$2 x-5 y+4 z$