Practice problem
Which of the following quadratics can be factored?
x2+5x+6x^2 + 5x + 6x2+5x+6
x2+6x+5x^2 + 6x + 5x2+6x+5
x2+12x+13x^2 + 12x + 13x2+12x+13
x2+8x+9x^2 + 8x + 9x2+8x+9
x2+92x+91x^2 + 92x + 91x2+92x+91
x2+2020x+2019x^2 + 2020x + 2019x2+2020x+2019
x2+9x+8x^2+9x+8x2+9x+8
Type a concept, like “slope” or “photosynthesis”.