Question

Por favor ayudenme
Al efectuar (4/5a^2b^3 -5)^2

Answer 1

=\left(\frac{4a^2b^3}{5}-5\right)^2
=\left(\frac{4a^2b^3}{5}\right)^2-2\cdot \frac{4a^2b^3}{5}\cdot \:5+5^2
=\frac{16a^4b^6}{25}-8a^2b^3+25