Question

-0.6x^2-6x+30 = 0 solve by completing the square?

Answer 1

cannot solve by factoring. Must use the formula to get the answer

Answer 2

Thank you!

Answer 3

u're welcome

Answer 4

Can it be solved by completing the square?

Answer 5

Yes it can. wait a minute

Answer 6

-0.6x^2 - 6x + 30 = 0
-0.6(x^2 + 10x - 50) = 0
x^2 + 10x - 50 = 0
(x^2 + 10x + ___) = 50
(x^2 + 10x + 25) = 50 + 25
(x + 5)^2 = 75
x + 5 = + or - sqrt(75)
x = -5 + 5sqrt(3)
or
x = -5 - 5sqrt(3)