Question

Decide whether each of the following pairs of expressions are equivalent for all values of x. If they are equivalent, show how you can be sure. If they are not, justify your reasoning completely.
a. (x - 5)(2x + 7) and 2x^2 - 3x - 35
b. 3(x - 2)^2 + 6 and 3x² + 18​

Answer 1

It’s b this is becuase x should equal all of b