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)(AB)^2+2×AB×AC+(AC)^2
Ab^2+2a^2bc+ac^2
2) (2xyz)^2-(3)^2
4x^2y^2z^2-9
3)se multiplica termino por termino
2x×2x-2x×4/5-5/3×2x+4/5×5/3
4x^2-8/5x-10/3x+1/3×4
4x^2-8/5x-10/3x+4/3
Mcm es 15
4x^2-74/15x+4/3