Question

P (x2+3x+9)=x-x2 por favor ​

Answer 1

Respuesta:

$x=-\frac{9P}{5P+1};\quad \:P\ne \:-\frac{1}{5}$

Explicación paso a paso:

$P\left(x\cdot \:2+3x+9\right)=-x$

$5xP+9P=-x$

$5xP+9P-9P=-x-9P$

$5xP=-x-9P$

$5xP+x=-x-9P+x$

$5xP+x=-9P$

$x\left(5P+1\right)=-9P$

$\frac{x\left(5P+1\right)}{5P+1}=\frac{-9P}{5P+1};\quad \:P\ne \:-\frac{1}{5}$

$x=-\frac{9P}{5P+1};\quad \:P\ne \:-\frac{1}{5}$