Question

$frac{(7 {}^{ - 11) {}^{2} } }{7 {}^{ - 23} ?}$

Answer 1

Решение во вложении:

Answer 2

$frac{(7 {}^{ - 11} ) {}^{2} }{ {7}^{ - 23} } = frac{ {7}^{ - 22} }{ {7}^{ - 23} } = 7$