Question

Сократите дробь a(c-4)/b(16-c^2)

Answer 1

$frac{a(c-4)}{b(16-c^{2}) }=frac{a(c-4)}{b(4-c)(4+c)}=-frac{a}{b(c+4)}$

Answer 2

$frac{a*(c-4)}{b* (16-c^{2} )} = frac{a* (c-4)}{b * (4-c) * (4+c)} = frac{a*(c-4)}{b* (-(c-4)) * (4+ c)} = frac{a*(-1)}{b*(4+c)} = - frac{a}{4b+bc}$