Question

21

Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar.

The solution set of n2 - 14n = -45 is {

(Separate the solutions with a comma)

Answer 1

the solution set of n2 - 14n = -45 is {5, 9}

Explanation:

We have the following equation: n^2 - 14n = -45

Rearrange:

n^2 - 14n +45 = 0

Factorizing:

(n-9)(n-5) = 0

Therefore, the solution set of n2 - 14n = -45 is {5, 9}