Question

(3x-y)(3x-y) regla del producto notable

Answer 1

Respuesta:

${9x}^{2} - 6xy + {y}^{2}$

Resolucion:

$(3x - y)(3x - y) \\ {(3x - y)}^{2} \\ {3x}^{2} - 2(3x) y + {y}^{2} \\ {9x}^{2} - 6xy + {y}^{2}$