CPM Homework Help : AC Problem 12-110

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12-110.

Determine the number of solutions for each of the quadratics below. Note: You do not need to solve the quadratics.

$\left(x-2\right)^2=-3$
Answer (a):
No real solution.

$6x^2-x-2=0$
Hint (b):
This quadratic is factorable.

$4x^2-4x+1=0$
Hint (c):
Perfect Square Form: $(2x−1)^2=0$

$427x^2+731x-280=0$
Hint (d):
This quadratic is not factorable.
Try using the Quadratic Formula.
Answer (d):
Two real solutions.

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