3.4-2.8d+2.8d-1.3 combine like terms to create an equivalent expression

The equivalent expression is .

Step-by-step explanation:

Given : Expression

To find : Combine like terms to create an equivalent expression ?

Solution :

Expression

Combine like terms,

Therefore, the equivalent expression is .

answer: both chords and diameters have two endpoints on a circle. diameters must intersect the center of a circle.