Factoring Quadratics

4.4 Factoring Quadratics (a > 1)

 $y\ =\ 5x^2+11x+2$  

Find the x-intercepts by factoring

 $y=3x^2-7x+2$  

Find the x-intercepts 

Multiple Choice

What is the correct factorization of

$$y=7x^2+10x+3$$  ?

• $$\left(7x+1\right)\left(x+3\right)$$  

• $$\left(7x+3\right)\left(x+1\right)$$  
  

• $$\left(7x-3\right)\left(x-1\right)$$  

• none of these

Multiple Choice

What is the correct factorization of 
$$y=3x^2+x-2$$  

• $$\left(2x+1\right)\left(x-2\right)$$  

• $$\left(2x-2\right)\left(x+1\right)$$  

• $$\left(3x-2\right)\left(x+1\right)$$  

• $$\left(3x+1\right)\left(x-2\right)$$  

 $y=4x^2+16x+15$  

slide method

 $y=8x^2+31x-4$  

slide method

Multiple Choice

What is the correct factorization of

$$y=4x^2-4x-3$$  

• $$\left(4x+1\right)\left(x-3\right)$$  

• $$\left(4x-1\right)\left(x+3\right)$$  

• $$\left(2x-1\right)\left(2x+3\right)$$  

• $$\left(2x-3\right)\left(2x+1\right)$$  

Multiple Choice

What is the correct factorization of

$$y=6x^2+13x+6$$  

• $$\left(2x+3\right)\left(3x+2\right)$$  

• $$\left(6x+1\right)\left(x+6\right)$$  

• $$\left(x+2\right)\left(6x+3\right)$$  

• $$\left(3x+1\right)\left(2x+6\right)$$