Solve 15 = -y2

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Solution.

Given equation is 15 = -y² - 3

Converting given equation into Standard Form of Quadratic Equation. ax² + bx + c = 0

15 = -y² - 3 converted into x² + 0x + 18 = 0

Comparing it with the standard Form of Quadratic Equation ax² + bx + c = 0

a = 1, b = 0, c = 18

As we know, discriminant = b² - 4ac

Discriminant = (0)² - 4(1)(18)

Discriminant = 0 - (72)

Discriminant = -72

Since discriminant < 0
No real root.

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