Question

Write an expression to represent the sum of three times the square of a number and -7.

In your expression, what Is the value of the constant?

Answer 1

3n²-7

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.