Question 240936
How do you solve the following quadratic equations: 
-6(u+5)^2=120
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(u+5)^2 = -20
u+5 = 2isqrt(5) or -2isqrt(5)
u = -5+2isqrt(5) or u = -5-2isqrt(5)
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3s^2-1=7s^2
4s^2 = -1
s^2 = -1/4
s = i/2 or s = -i/2
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Cheers,
Stan H.