1) factor the expression over the complex numbers. x^2+18 2) factor the expression completely over the complex numbers. y^4+14y^2+49 only correct answers asap : !

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Three coins are flipped. what is the probability that there will be at least two tails?

Acircle has a circumference of 2 pi cm. which statement about the circumference and area is true? a comparison of the area and circumference is not possible since the area cannot be determined. the numerical values of the circumference and area of the circle are equal. the numerical value of the circumference is greater than the numerical value of the area. the numerical value of the circumference is less than the numerical value of the area.