Respuesta:
[tex](7x + 4) {}^{2} = ({7x})^{2} + 2(7x)(4) + (4) {}^{2} \\ = 49x {}^{2} + 56x + 16[/tex]
espero que te ayude
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Respuesta:
[tex](7x + 4) {}^{2} = ({7x})^{2} + 2(7x)(4) + (4) {}^{2} \\ = 49x {}^{2} + 56x + 16[/tex]
espero que te ayude