Which expression is equivalent to 100 n2 − 1? 10n2 − 12 10n22 − 12 50n2 − 12 50n22 − 12

The correct answer is:(10n)² − (1)²Explanation:If we evaluate this expression, we square everything in the first set of parentheses; this means we have 10²n² - 1², or 100n² - 1.This is the expression we were trying to equal.