CPM Homework Help : PC3 Problem 1-90

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1-90.

Solve each of the following quadratic equations.

$2x^2-x-3=0$
Hint (a):
This quadratic can be factored, so factor and use the Zero Product Property.
Step 1 (a):
$(2x-3)(x+1)=0$
Step 2 (b):
$2x-3=0\text{ or }x+1=0$

$2(1-y^2)+y+1=0$
Hint (b):
1. Distribute.
2. Simplify.
3. What do you notice about parts (a) and (b)?

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