Question

1/2 a³b + a²b - 2ab² + 3/5
suma de polinomios y comprueba tu resultado evaluando para a=2 y b= -1
El resultado tiene que ser -400/15​

Answer 1

$\textbf{Respuesta:}\\\\\mathbf{\dfrac{1}{2}\left(2\right)^3\left(-1\right)+\left(2\right)^2\left(-1\right)-2\left(2\right)\left(-1\right)^2+\dfrac{3}{5}\left(-1\right)^3}\\\\\\\mathbf{\dfrac{1}{2}\left(8\right)\left(-1\right)+\left(4\right)\left(-1\right)-2\left(2\right)\left(1\right)+\dfrac{3}{5}\left(-1\right)}\\\\\\\mathbf{-\dfrac{8}{2}-4-4-\dfrac{3}{5}}\\\\\\\boxed{\mathbf{-\dfrac{63}{5}}}$