Question

What are the solutions of the equation?

Solve x^2 - 15 = 0.
1. Isolate x?: x^2 = 15
2. Apply the square root property of equality:
© x= and x=-
© x= andx=-
O x= 15 and x = - 15
O x= 4, and x= -

Answer 1

x₁ = √15

x₂ = - √15

Explanation:

x² - 15 = 0

x² = 15

x = ±√15

x₁ = √15

x₂ = - √15