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 [ ]

Question

Mathematics

Felicity Yates

2 March, 22:35

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 [ ]

+3

Answers (1)

Know the Answer?

Lucille Cruz · Answer 1

n=5 n=9

Step-by-step explanation:

n^2 - 14n = - 45

Add 45 to each side

n^2 - 14n + 45 = - 45+45

n^2 - 14n + 45 = 0

Factor the equation

What 2 number multiply to 45 and add to - 14

-5*-9 = 45

-5+-9 = - 14

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

Using the zero product property

n=5 n=9