Question

Упростите выражение (3a+7b/5a+8a-3b/5b)*10ab/7b2+8a2

Answer 1

$left(3a+frac{7b}{5a}+8a-frac{3b}{5b}right)cdotfrac{10ab}{7b^2}+8a^2=\ =left(11a+frac{7b}{5a}-frac{3}{5}right)cdotfrac{10a}{7b}+8a^2=\ =frac{110a^2}{7b}+2-frac{6a}{7b}+8a^2.$