Factoring Trinomials of the Form x^2 + bx + c

Find the GCF of  $30x^2y^3\ and\ 84x^4y\$  

•  $2x^2y$  

•  $3x^4y^3$  

•  $6x^2y$  

•  $15x^4y^3$  

•  $None$  

Find the GCF of  $12x^3y\ \ and\ \ 21x^2y^2$  

•  $84x^3y^2$  

•  $84x^2y$  

•  $3x^3y^2$  

•  $3x^2y$  

Factor  $x^2-5x-14$  

•  $\left(x+2\right)\left(x-7\right)$  

•  $\left(x-2\right)\left(x+7\right)$  

•  $\left(x-2\right)\left(x-7\right)$  

•  $\left(x-2\right)\left(x-3\right)-20$  

• Prime

Which of the following pairs is relatively prime? List all answers

• $12\ and\ 8$

• $3\ and\ 1$

• $18\ and\ 4$

• $15\ and\ 16$

• $30\ and\ 69$

Which of the following polynomials is prime? List all correct answers 

•  $x^2+4x-40$  

•  $x^2-11x+24$  

•  $y^2+18y+72$  

•  $x^2-12x+1$  

Find the GCF of 156 and 180.

• $36$

• $3$

• $6$

• $12$

Find the GCF of  $12x^3yz\ and\ 21x^2y^2z^2$  

•  $21xy^2z$  

•  $6xyz^2$  

•  $3x^2yz$  

•  $4x^2yz$  

Find the GCF of  $4\pi xy\ and\ 2\pi x^2z$  

•  $2\pi x$  

•  $8\pi x$  

•  $2\pi x^2z$  

•  $4\pi z$  

Find the GCF of  $75x^2y\ and\ 45xy^2$  

•  $30x^2y^2$  

•  $15xy$  

•  $25xy$  

•  $35xy^2$  

Factor  $x^2+13x+40$  

•  $\left(x+2\right)\left(x+20\right)$  

•  $\left(x-10\right)\left(x-4\right)$  

•  $\left(x+8\right)\left(x+5\right)$  

• Prime