Question

(x+2)²-x(x+1) =x(x-3)²-x²​

Answer 1

Respuesta:

$3x+4=x^{3}-7x^{2} +9x$

Explicación paso a paso:

$(x+2)^{2}-x(x+1)=x(x-3)^{2}-x^{2} \\\\(x+2)^{2}-x(x+1)\\x^{2} +4x+4-x^{2} -x\\4x+4-x\\3x+4\\\\x(x-3)^{2}-x^{2} \\x(x^{2} -6x+9)-x^{2} \\x^{3}-6x^{2} +9x-x^{2} \\x^{3}-7x^{2} +9x\\\\3x+4=x^{3}-7x^{2} +9x$

Adjunto Grafica