Question

efectuar la multiplicación de productos
(1/4m+2/5n)•(1/4m-2/7n)=​

Answer 1

Hola!

(1/4m+2/5n)(1/4m-2/7n)

$=\left(\dfrac{m}{4}+\dfrac{2n}{5}\right)\left(\dfrac{1}{4}m-\dfrac{2}{7}n\right)$

$=\left(\dfrac{m}{4}+\dfrac{2n}{5}\right)\left(\dfrac{m}{4}-\dfrac{2n}{7}\right)$