ANSWER:
1st option: 1 is a constant
4th option: 9x + 4y + 1 written as a sum of three terms
Explanation:
We have the following equation:
From the following equation we can say the following:
• The only constant term is 1
,
• None of the terms are similar
,
• There are a total of 3 terms
,
• The coefficients are 9 and 4
,
• The factors are 9, 4, 1, x and y
From the above we can affirm that the true statements are:
• 1 is a constant
• 9x + 4y + 1 written as a sum of three terms