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b) (3m)²-(2)(3m)(2n)+(2n)²=9m²-12mn+4n²
c) (1/3m²)²+(2)(1/3m²)(3n²)+(3n²)²=1/9m⁴+2m²n²+9n⁴
Punto 2
b) A=(x³+2y)²=4y²+4x³y+x⁶
c) A=(5x+3y)²=9y²+30xy+25x²
Punto 4
a) (4x+5)(4x-5)=16x2−25
b) (2m²-3n²)(2m²+3n²)=4m⁴−9n⁴
c) (2mn³-3m²n)(2mn³+3m²n)=4m²n⁶−9m⁴n²
d) (9/16)x⁴
Punto 5
a) (ax+by)³=(ax)³+3(ax)²(by)+3(ax)(by)²+(by)³
b) (3x²+2y³)³=(3x²)³+3(3x²)²(2y³)+3(3x²)(2y³)²+(2y³)³=27x⁶+54x⁴y³+36x²y⁶+8y⁹
c) {(1/2)x³-(1/3)y⁴)³={(1/2)x³}³+3{(1/2)x³}²{(1/3)y⁴}+3(1/2)x³{(1/3)y⁴}²+{(1/3)y⁴}³=1/8x⁹+1/4x⁶y⁴+1/6x³y⁸+1/27y¹²
d) {(a/b)+(2/3)y²}³={(a/b)³ + 3(a/b)²(2/3)y²+3(a/b){(2/3)y²}² + {(2/3)y²}³
= a³/b³+2a²y²/b²+4a/by⁴+8y⁶/27
Punto 6
a) x(x-y)²=xy²−2x²y+x³
b) 2x(2x+y)(2x-y)=8x³−2xy²
Punto 11
a) (2x+2y)(2x-2y)-(x-2)=4x²-4y²-x+2
b) (3x+2)(3x-2)/2=(9x²-4)/2
ESPERO ESTE BIEN Y TENGAS BUENA NOTA