Unit 7 Review

Which function is equivalent to $g\left(x\right)=49x^2-56x+16?$  

•  $g\left(x\right)=\left(49x-4\right)\left(x-4\right)$  

•  $g\left(x\right)=\left(7x-4\right)^2$  

•  $g\left(x\right)=\left(7x+4\right)^2$  

•  $g\left(x\right)=\left(49x+4\right)\left(x+4\right)$  

What value of x makes the equation

 $-0.3\left(10x-30\right)=9x-1.25\left(20-4x\right)$  true?

*Type the number only.  Do not type the x=.*

Which expression is equivalent to

 $121x^2+132x+36?$  

•  $\left(11x+6\right)^2$  

• Cannot be factored

•  $\left(11x+6\right)\left(11x-6\right)$  

•  $\left(121x+4\right)\left(x+9\right)$  

• Cannot be factored

Which expression is a factor of

 $3x^2-7x-10?$  

•  $3x+1$  

•  $3x+10$  

•  $x-1$  

•  $x+1$  

Which expression is a factor of $16w^2-3w+2?$  

•  $16w-1$  

•  $4w-1$  

• There are no real factors. 

•  $8w-1$