The square of a number is 12 less than 7 times the number. what is the number?

–4 or –3

–4 or 3

–3 or 4

3 or 4

n = 3 or n = 4

Step-by-step explanation:

Let the unknown number be n.  Then:

n² = 7n - 12

In standard quadratic form, we have:

n² - 7n + 12 = 0

In factored form, we have:

(n - 3)(n - 4) = 0, and so n = 3 and n = 4 (same as the fourth answer choice)

D. 3 or 4

Step-by-step explanation:

answer is c

step-by-step explanation:

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