Respuesta:
[tex](a-b)^{2} =8^{2} \\a^{2}-2ab+ b^{2} =64\\a^{2}+b^{2}=64+2(ab)\\a^{2}+b^{2}=64+2(4)\\a^{2}+b^{2}=72[/tex]
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Respuesta:
[tex](a-b)^{2} =8^{2} \\a^{2}-2ab+ b^{2} =64\\a^{2}+b^{2}=64+2(ab)\\a^{2}+b^{2}=64+2(4)\\a^{2}+b^{2}=72[/tex]