Question

a/5=15/b=>ab - 8 la puterea2

Answer 1

$\frac{a}{5} = \frac{15}{b}$

$a \times b = 5 \times 15$

$ab = 75$

$ab - {8}^{2} = 75 - 64 = 11$

Answer 2

a*b=5*15
ab=75
ab-8²
=75-64
=11