Answer:
3n²-7
Step-by-step explanation:
• Let a number be 'n'
• 3 times a number will be 3n
• the square of a number will be n² thus 3n²
• -7 comes at the end of the expression
• your constant is the value/number without a variable (in this case 'n' is your variable)
• -7 is your constant.
