Question

Identify the like and unlike terms in the following:
(1) -5xy, 3xy?, 3x y
(ii) 3a, 5a, 7a, - 6a​

Answer 1

Answer:

In algebra, the letter that stands for an unknown number is called a variable. The variables in 8x2y3 are x and y.

The number that multiplies a variable or variables is called the coefficient. It is usually written in front of the variable or variables. The coefficient in 9yz4 is 9. When the coefficient is 1, it is typically not written (i.e., 1yz4 = yz4 and 1a3 = a3).

The power to which a variable is raised is called the exponent. The exponent in 7a5 is 5. When the exponent is 1, it is typically not written (i.e., 6y1z4 = 6yz4). Any variable or number raised to the power zero gives one (i.e., x0 = 1).

Any number or variable or product of numbers and variables is called a monomial. Each of the following is an example of a monomial :

5, −7, x, y, 6xyz, −9yz4, 2.3a3

A monomial or the sum of two or more monomials is called a polynomial. Each of the following is an example of a polynomial :

6xyz, 5a3 − 21, 4x2 − 9y2, 2x + 3y + 4z, 5x2 + 6x + 7

Answer 2

Answer:

ii) -6a

I)3xy?

Step-by-step explanation:

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