1 )el binomio 121x ^ 4 - y ^ 2 2)la diferencia de cubo 8 - x ^ 3 es igual a ?

Respuesta : <img src="https://tex.z-dn.net/?f=121x%5E%7B4%7D-y%5E%7B2%7D%3D%2811x%5E%7B2%7D%2By%29%2811x%5E%7B2%7D-y%29%5C%5C%5C%5C8-x%5E%7B3%7D%3D%282-x%29%284%2B2x%2Bx%5E%7B2%7D%29" />Explicación paso a paso : <img src="https://tex.z-dn.net/?f=%5Ctextbf%7BRecordemos%20algunos%20productos%20notables%7D%5C%5C%5C%5Cx%5E%7B2%7D-y%5E%7B2%7D%3D%28x%2By%29%28x-y%29%5C%5C%5C%5Cx%5E%7B3%7D-y%5E%7B3%7D%3D%28x-y%29%28x%5E%7B2%7D%2Bxy%2By%5E%7B2%7D%29%5C%5C%5C%5C%5Ctextbf%7BAplicando%20dichos%20productos%20a%20las%20expresiones%20dadas%20nos%20queda%3A%7D%5C%5C%5C%5C121x%5E%7B4%7D-y%5E%7B2%7D%5C%5C%5Csqrt%7B121%7D%3D11%5C%5C%5Csqrt%7Bx%5E%7B4%7D%7D%3Dx%5E%7B2%7D%5C%5C%5Csqrt%7By%5E%7B2%7D%7D%3Dy%5C%5C%5C%5C%5Csqrt%5B3%5D%7B8%7D%3D2%5C%5C%5Csqrt%5B3%5D%7Bx%5E%7B3%7D%7D%3Dx%5C%5C%5C%5C%5Ctextbf%7BPor%20lo%20tanto%7D%5C%5C%5C%5C121x%5E%7B4%7D-y%5E%7B2%7D%3D%2811x%5E%7B2%7D%2By%29%2811x%5E%7B2%7D-y%29%5C%5C%5C%5C8-x%5E%7B3%7D%3D%282-x%29%284%2B2x%2Bx%5E%7B2%7D%29" />Saludos.