Question

ayudenme a resolver este problema
(13a² b-b) ²

Answer 1

Resolver:
(13a²b - b)²    Utilizamos productos notables (a  - b)² = a² -2ab +b²
(13a²b - b)² = (13a²b)² - 2(13a²b)(b) +b² =
13²a⁴b² -26a²b² +b²=
169a⁴b² -26a²b² +b²

Respuesta:
169a⁴b² - 26a²b² + b²

Answer 2

$Se \ puede \ resolver \ dos \ maneras \\ \\ 1) Aplicando \ distributiva \\ \\ (13a^2b -b)^2 = (13a^2b -b)(13a^2b-b)\\ \\ (13a^2b -b)^2 = 169a^4b^2 - 13a^2b^2 - 13a^2b^2 + b^2\\ \\ (13a^2b -b)^2 = 169a^4b^2 - 26a^2b^2 + b^2 \\ \\ 2) Aplicando \ la\ formula\ de\ Trinomio\ Cuadrado\ Perfecto \\ \\ (a-b)^2 = a^2 -2ab+b^2 \\ \\ (13a^2b -b)^2 = (13a^2b)^2 - 2(13a^2b)(b) + b^2\\ \\ (13a^2b -b)^2 = 169a^4b^2 - 26a^2b^2 + b^2$

Espero que te sirva, salu2!!!!