Solve x^2+6x+15=0 using the quadratic formula

Question

Paityn

Mathematics

18 March, 08:01

Solve x^2+6x+15=0 using the quadratic formula

+4

Answers (2)

Know the Answer?

Marcos Olson · Answer 1

Marcos Olson 18 March, 08:02

0

No real solutions is your answer

Jessie Stokes · Answer 2

X = [-b±√b²-4ac]/2a

x = [-6±√{6² - 4*1*15} / 2*1

x = [-6±√ (36 - 60) ]/2

x = [-6±√-24]/2

x = [-6± í2√6] / 2

x = - 3±2√6ì

x = - 3+2√6ì or x = - 3-2√6ì

where ì = √-1