Practice problem
If y=x2+3x+1y=x^2+3x+1y=x2+3x+1, what is 2y2y2y?
x2+3x+1x^2+3x+1x2+3x+1
2x2+3x+22x^2+3x+22x2+3x+2
2x2+6x+12x^2+6x+12x2+6x+1
2x2+6x+22x^2+6x+22x2+6x+2
Type a concept, like “slope” or “photosynthesis”.