For that you can use the foil method to check the choices given are equal to x2+9x-22. Foil stands for First term Outside term Inside term Last term. We can directly cross off a because it
doesn’t equal to x2+9x-22. Let’s check choice c you get x2-2x-11x+22 that doesn’t give us x2+9x-22 . You can also directly cross out choice d . Only b is the correct answer.
