Practice problem
What is the area of a rectangle with length 2x+42x + 42x+4 and width x−5x - 5x−5?
2x2+6x+92x^2 + 6x + 92x2+6x+9
2x2−6x−202x^2 - 6x - 202x2−6x−20
3x2−x+13x^2 - x + 13x2−x+1
x2+3x−20x^2 + 3x - 20x2+3x−20
Type a concept, like “slope” or “photosynthesis”.
