Question

Solve by factoring.

s²-14s+45=0
O A. s-3 or 15
O B. s= -5 or - 9
O C. s=5 or - 9
O D. s=5 or 9

Answer 1

Correct Option is D s=5 or 9

Explanation:

Given:

`{s}^(2) - 14s + 45 = 0`

By factoring

`{s}^(2) - 9s - 5s + 45`

Taking common terms

`s(s - 9) - 5(s - 9) = 0`

`(s - 5)(s - 9) = 0`

Therefore

`s = 5 \: or \: 9`