Write the IUPAC names of the following compounds :
`(CH_3)_2 C=C(CH_3)CH =C (C_2 H_5)_2`

Explanation

To derive the IUPAC name of the compound `(CH₃)₂C=C(CH₃)CH=C(C₂H₅)₂`, we will follow these steps:

### Step 1: Identify the Longest Carbon Chain
First, we need to identify the longest continuous carbon chain that includes both double bonds. In this case, the longest chain consists of 7 carbon atoms.

### Step 2: Number the Carbon Chain
We will number the carbon chain starting from the end closest to the first double bond. This gives us the following numbering:
1. C1
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