Answer:
2i and -2i
Step-by-step explanation:
I'll change u to x to be easier to understand.
x^2 = -4
sqrt(x^2) = sqrt(-4)
sqrt(-4) = 2i, or -2i
It would be 5 months because if you do 75 + 20x = 35x
15x = 75
----- ------
15 15
x = 5
Answer:
sub to graec franz
Step-by-step explanation:
6.72 4893,.43
Hi there! The answer is -4

Subtract 5 from both sides.


Divide by 4

Therefore, the largest integer value of x which makes the inequality true is -4. Not -3, because when filling in -3, the value isn't smaller than -3 anymore.
(Filling in x = -3 gives 17 > 17, which is incorrect).