Question

4 xy - 2 XY + 3 xy ; when x = -1 y = z​

Answer 1

Step-by-step explanation:

4xy - 2xy + 3xy

2xy + 3xy

5xy

Answer 2

Question

4 xy - 2 xy + 3 xy ; when x = -1 y = z.

Answer

$\rm \: Given:-$

$\rm \: x=-1$

$\rm \: y=z$

$\rm \: 4xy - 2xy + 3xy =?$

$\bf \: Substituting~the~value,$

$\rm \: 4xy - 2xy + 3xy =?$

$\rm \: \mapsto \:4xy - 2xy + 3xy$

$\rm \: \mapsto \:4(1)(z) - 2(1)(z) + 3(1)(z)$

$\boxed{\rm \: \longmapsto \:4z- 2z + 3z}$

Know more

An expression of more than two algebraic terms, especially the sum of several terms that contain different powers of the same variables is called a polynomial.

Polynomials are of different types. They are:-

• Monomial
• Binomial
• Trinomial.

→A monomial is a polynomial with one term.Eg: x,y,65.

→ A binomial is a polynomial with two terms. Eg,2y+6,x+9,

→ A trinomial is a polynomial with three terms.x+3y-18,3x+6+5y...