CPM Algebra Ch 10 - Quiz 1

Solve for x in the following equation:

 $\frac{1}{4}x+\frac{2}{7}x\ =\ 15$  

•  $\frac{30}{11}$  

•  $28$  

•  $\frac{30}{28}$  

•  $1$   

 $\left(7x-14\right)^2=-7$  

How many solutions are there for the following quadratic equation:

• 0

• 1

• 2

• I don't know!

What method is being applied in the following example:


If $5+\left(x-4\right)=15$  then  $\left(x-4\right)\ must\ equal\ 10$  

• Rewriting

• Looking Inside

• Undoing

• Fraction Buster

Solve for x in the following equation:
 $9^{x-2}\ =\ 9^{-4}$  

Solve the following equation for x:
$\frac{3x}{630}+\frac{4x}{630}=\frac{21}{630}$

Which of the following equations is equivalent to 

 $2x^3-8x^2+14x=0$  

•  $x^2-4x-7=0$  

•  $2x\left(x^2-4x+7\right)=0$  

•  $2x^2-8x+14=0$  

•  $2x\left(x^2-8x+14\right)=0$  

 $2.5x+1.5=1.5x+7$  

Which of the following are equivalent to
 $12x^6$  ?

•  $\left(6x^8\right)\left(2x^{-2}\right)$  

•  $\frac{\left(60x^{10}y\right)}{5x^4y}$  

•  $\left(144x^{12}\right)^{\frac{1}{2}}$  

•  $3\left(2x^3\right)^2$