so I'm totally lost!
The question is
-6(u + 5)squared =120

so do I distribute or do I divide by six?

if you can help please email or I'm me at
[email protected]

u divide by -6 first because u go right to left
u(squared)+25=-20
then u subtract 25
u2=-45
and because u can't have a negative square root u have
(plus or minus)(square root)45
-chainer

Quote:

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Originally Posted by bravesfanatic10

so im totally lost!
The question is
-6(u + 5)squared =120

so do i distribute or do i divide by six?

if you can help please email or im me at
[email protected]

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Divide by 6:
(u + 5)^2 = -20
take square roots:
sqrt((u + 5)^2) = sqrt(-20)
u + 5 = +/- sqrt(-20)
u = -5 +/- sqrt(-20)
u = -5 +/- 2i*sqrt(5) ; equation has 2 complex roots