Find the roots of the equation by factoring. X^2 - 2x = 15

asked Sep 3, 2020 12.1k views

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Roots: 5 and -3
The factors are -5 and 3 because they add to -2 and multiply to -15.
X^2 -2x = 15
-15 -15
X^2 -2x -15 = 0
(X -5) (x +3)
X= 5 and -3

ShaneA answered Sep 6, 2020

4.9k points

4 votes

Answer:

x = 5

Explanation:

5x5 = 25

25- 10 = 15

15 = 15

Vicrobot answered Sep 8, 2020

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