Question

Arrange the following in the decreasing order based on the number of terms in the result after multiplication.

• A. x( 2 +1 )
• B. y( 2x+3z+7k+1)
• C. x( g +y )
• D. y ( k+l+m)

Answer 1

Let's add given expressions:

1. x( 2 +1 )

2x+x = 3x

So, number of terms = 1

2. y( 2x+3z+7k+1)

=2xy + 3zy +7ky+y

So, number of terms = 4

3. x( g +y )
= xg+ xy

So, number of terms = 2

4. y ( k+l+m)

=yk+yl+ym

So, number of terms = 3