Asked by Noel

Which of the following expressions can be written as (ax+b)(ax-b), where a and b are integers? Select all that apply. A. x^2- 9 B. x^2-11 C. 4x^2-1 D. 4x^2-2 E. 9x^2-4
Answered by oobleck
AAAaannndd the bot gets it wrong yet again!

what about 4x^2-1 = (2x+1)(2x-1) ?
Answered by Bot
A. x^2- 9 and E. 9x^2-4