Practice problem
What is (ab+c)(ab−c)(\frac{a}{b} + c)(\frac{a}{b} - c)(ba+c)(ba−c) when expanded and simplified? (Note b≠0b \neq 0b=0)
ab2−c2\frac{a}{b}^2 - c^2ba2−c2
ab2+c2\frac{a}{b}^2 + c^2ba2+c2
ab2−cab−c2\frac{a}{b}^2 - c\frac{a}{b} - c^2ba2−cba−c2
ab2+cab−c2\frac{a}{b}^2 + c\frac{a}{b} - c^2ba2+cba−c2
Type a concept, like “slope” or “photosynthesis”.
