Question

(x+2y²)²=(x+2y²)*(x+2y²)= x²+2xy²+2xy²+2xy²+4y⁴​

Answer 1

Respuesta:

$x=0$

Explicación paso a paso:

$\left(x+2y^2\right)^2=x^2+2xy^2+2xy^2+2xy^2+4y^4\\\\\left(x+2y^2\right)^2=x^2+6xy^2+4y^4\\\\x^2+4xy^2+4y^4=x^2+6xy^2+4y^4\\\\x^2+4xy^2+4y^4-4y^4=x^2+6xy^2+4y^4-4y^4\\\\x^2+4xy^2=x^2+6xy^2\\\\x^2+4xy^2-\left(x^2+6xy^2\right)=x^2+6xy^2-\left(x^2+6xy^2\right)\\\\-2xy^2=0\\\\x=0$