Answer: -3y2 - -3y-5 also could be written as -3y2 +3y-5
Step-by-step explanation: Just combine like terms!!!
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Answer:
x = 2 ± 2 sqrt(5)i
Step-by-step explanation:
(x – 2)^2 + 20 = 0
Subtract 20 from each side
(x – 2)^2 + 20 -20=0 -20
(x – 2)^2 =- 20
Take the square root of each side
sqrt((x – 2)^2) =±sqrt(- 20)
x-2 = ±sqrt(- 20)
We know sqrt(ab) = sqrt(a) sqrt(b)
x-2 = ±sqrt(- 1) sqrt(20)
We know the sqrt (-1) = i
x-2 = ±i sqrt(4*5)
x-2 = ±i sqrt(4) sqrt(5)
Add 2 to each side
x-2+2 = 2 ±i sqrt(4) sqrt(5)
x = 2 ±i 2 sqrt(5)
x = 2 ± 2 sqrt(5)i
Answer:
-13/4
Step-by-step explanation:
Look for the LCM of both which is 4. 4÷1 ×-4 which is -16
then 4 divided by 4 which is 1 then × 3 which is 3.
now (-16+3)/4 to have -13/4
Answer:
13p+11.75 is no more than 480
Step-by-step explanation:
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