CPM Homework Help : INT3 Problem 1-104

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1-104.

Solve each equation. Give solutions in both exact and approximate forms.

$x^2 + 3x - 3 = 0$
Hint (a):
This equation cannot be factored.
More Help (a):
Remember the Quadratic Formula?
$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$
Answer (a):
$x=\frac{-3\pm\sqrt{21}}{2}$
$x\approx-3.79\text{ or }x\approx0.79$

$3x^2 - 7x = 12$
Hint (b):
First, put the equation in Standard Form: $ax^2 + bx + c = 0$
More Help (b):
See part (a).

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