Benchmark 7 Quiz

Simplify  $\frac{4zy^3\ }{4x^{-4}y^2}$  

•  $\frac{2}{x^7yz}$  

•  $\frac{1\ }{2z^6x^2y^3}$  

•  $\frac{2}{yz^4x}$  

•  $x^4zy$  

Multiply  $\left(7k+5\right)\left(3k-7\right)$  

•  $21k^2-34k-35$  

•  $24k^2-k-10$  

•  $21k^2-35$  

•  $21k^2-64k+35$  

Let  $f\left(x\right)=x-5$  and  $g\left(x\right)=4x+1$  . Which one of the following would yield  $f\left(x\right)g\left(x\right)$  ?

•  $40x^2+6x-4$  

•  $4x^2-19x-5$  

•  $40x^2-4$  

•  $28x^2+10x-2$  

Simplify  $\frac{m^4q^4}{3mq^2}$  

•  $\frac{q^8}{2}$  

•  $\frac{4m^8}{3q}$  

•  $\frac{m^3q^2}{3}$  

•  $p^2q^4m$  

Which polynomial is equivalent to $\left(2x+6\right)^2$  ?

•  $2x+36$  

•  $4x^2-36$  

•  $4x^2+36$  

•  $4x^2+24x+36$  

Multiply  $\left(3k-3\right)\left(k^2+4k+8\right)$  

•  $30k^3-49k^2+2k+15$  

•  $7k^3-28k^2-37k+10$  

•  $12k^3-22k^2+46k-30$  

•  $3k^3+9k^2+12k-24$  

A factory can make $3\times10^{4\ }$ t-shirts per day. How many t-shirts will it make in  $250$ days?  

•  $7.5\times10^5$  

•  $3.025\times10^4$  

•  $5.5\times10^4$  

•  $7.5\times10^6$  

Simplify  $4p^4-3p^2+7p+8p^2-4p^4-1$  .

•  $5p^2+7p-1$  

•  $1+7p$  

•  $5p^2+7p+1$  

•  $-2+7p$  

Which of the following words describe the expression below?

 $-10a+12$  

Select all that apply.

• monomial

• binomial

• constant

• linear

• cubic

Simplify the following expression completely. $\left(x-3\right)\left(x+3\right)\left(x+10\right)$  

•  $\left(x^2+9\right)\left(x+10\right)$  

•  $x^3+10x^2+9x+90$  

•  $x^3+19x+90$  

•  $11x^2+9x+90$