State the number of solutions: X squared = -4? Please explain this, Thankyou.

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State the number of solutions: X squared = -4? Please explain this, Thankyou.

is this sentence structure " It's huge message, i couldn't type" correct? and just explain me the meaning of this sentence.

Please help me ASAP... Thanks

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I think I have formula but I am not plugging the numbers in correctly please help I have been trying to figure out this problem for two days now

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