Suppose a cassmate claims that the difference between (x + 2) and (2 + 4) must be 0. is your classmate correct? choose the best explanation
a yes; (x + 2)2 = x2 + 4x + 4-6x2 + 4) = 0.
b. yes, when you substitute -2 for x, (-2 + 2)2 = 0 and (-2)2 + 4 = 0.
c. no: (x + 2)2 = (x2 + 4x + 4) - (x2 + 4) = 4x + 8.
d. no: (x + 2)2 = x2 + 4x + 4 + x2 + 4.