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Q: How do you solve 2x squared plus x plus 2 equals 0 by completing the square?

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i want to solve few questions of completing square method can u give me some questions on it

If x squared -10 = 0 then x = the square root of 10

Square root both sides and then x = 4

Solve this problem -x squared -40x- 80 =0

If x squared equals n, then x is the square root of n.

5.

This question cannot be answered. You will have to give me the number to the square root. * * * * * a = ±sqrt(c^2 - b^2)

x2=-81take the square root of both sidessince 81 is negative you need to take 81 times i when i=-1 then solve as the square root of 81. your answer is x=9i

This quadratic equation has no solutions because the discriminant is less than zero.

root 7

x = 2

h = +11 and/or -11

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