CPM Homework Help : INT3 Problem 4-68

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Home > INT3 > Chapter 4 > Lesson 4.3.1 > Problem 4-68

4-68.

Solve the following equations.

$3x^2+4=-x$
Step 1(a):
Start by subtracting $x$ from each side to get $3x^2+x+4=0$
Step 2(a):
Recall the Quadratic Formula.
$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$
Step 3(a):
Substitute the values for $a, b$ , and $c$ into the Quadratic Formula.
Answer (a):
$x = \frac{-1 \pm i\sqrt{47}}{6}$

$(y-6)^2+10=3y$
Step 1(b):
Expand the $(y−6)^2$ .
Step 2(b):
Rearrange the equation so that it equals zero.
Step 3(b):
Solve by factoring and using the Zero Product Property, or use the Quadratic Formula.

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