Question

hallar el producto notable de (2x+y)2

Answer 1

Respuesta:

$(2x + y) {}^{2}$

$= (2x + y)(2x + y)$

$= 4 {x}^{2} + 2xy + 2xy + {y}^{2}$

$= 4 {x}^{2} + 4xy + {y}^{2}$

Recuerda que:

$(a + b) {}^{2} = {a}^{2} + ab + ab + {b}^{2} = {a}^{2} + 2ab + {b}^{2}$