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12-92.
  1. Determine the number of solutions for each of the quadratics below. Note: You do not need to solve the quadratics. Homework Help ✎

    1. (x − 5)2 = −6

    2. 312x2 + 514x + 181 = 0

    3. (x + 3)2 − 10 = 0

    4. 4x2 + 49 = 28x

Can a square be negative?

No solutions. You cannot take the square root of a negative number.

Two solutions.

Two solutions.

Subtract 28x from both sides.