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Instructions: Simplify the following:
a. (x+1)(x1)
b. (2x+3)(2x - 3)
c. (3y²+4z3)(3y²+4z³)
d. (x+1)(x+1)
1. Let us compare the given from the 1 a and
b, and c and d. What have you noticed?
II. How can you compare the answers of a
and b to those of c and d?
III. How can you compare their answers'
first and last terms? Disregard signs, are
they perfect squares?