Answer:
Therefore, 9x² + 3x ≤ 35.
Step-by-step explanation:
Given : 3x and (3x+1).
To find : the product of 3x and (3x+1) is at least 35.
Solution : We have given
According to question
3x (3x+1) ≤ 35 ( less than equal to sign for at least that mean value of should be 35 or may be greater than 35.)
9x² + 3x ≤ 35.
Therefore, 9x² + 3x ≤ 35.
