How can you determine the number of solutions for a equation?

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Mathematics

Kristin Barron

3 November, 07:30

How can you determine the number of solutions for a equation?

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Walls · Answer 1

The equation z2 = 4 has two solutions: z = 2 and z = - 2. The equation x = x has infinitely many solutions: any value of x will work, since x is always equal to itself. The equation y2 = - 5 has no real number solutions because the square of any real number is positive.