Section R.1: Algebra Review

 $Simplify:\ 200-2^2\left(6\div\frac{1}{2}\cdot4\right)$  

• 8

• 10

• 7

• 9

 $Simplify:\ -5-\left\{4-6\left[\left(2-8\right)^2-31\right]\right\}$  

• 20

• 21

• -10

• -9

 $Simplify:\ -4\cdot\left(\frac{2}{5}-\frac{7}{10}\right)^2$  

• -9/24

• -9/25

• -1/20

• 9/25

 $Simplify:\ -6\left(-5y^2-3y+4\right)$  

•  $30y^2+18y-24$  

•  $-30y^2+18y+24$  

•  $18y^2+30y-24$  

•  $-30y^2+18y-24$  

 $Simplify:\ \frac{3}{4}\left(12p^5q-8p^4q^2-6p^3q\right)$  

•  $9p^5q-6p^4q^2-\frac{9}{2}p^3q$  

•  $9pq-6p-\frac{9}{2}$  

•  $9p^5q-6p^4q^2-\frac{9}{4}p^3q$  

•  $9p^5q-6p^4q^2-\frac{9}{4}p^2q$  

 $Simplify:\ 3\left(2z-4\right)+8\left(z-9\right)+84$  

•  $13z$  

•  $4z$  

•  $-14z$  

•  $14z$  

 $Simplify:\ -\left(10x-z\right)-2\left(8x-4z\right)-3x$  

•  $29x+9z$  

•  $-9x+29z$  

•  $-29x+9z$  

•  $29x+8z$  

 $Evaluate:\ \frac{y_2-y_1}{x_2-x_1},\ for\ \ \ x_1=-1.4,\ x_2=2,\ y_1=3.1,\ y_2=-3.7$  

• 2

• -2

• 3

• -3

What is the FIRST step to simplify:

 $20-12\left(36\div3^2\div2\right)?$  

• distribute negative 12 into the parenthesis

• add 12 to 20

• subtract 12 from 20

• simplify three squared

 $Evaluate:\ \frac{-b}{2a}\$  for a=-1, b=-6

• -1

• -4

• -3

• 3