Question

$5 {x}^{2} - 8 {x}^{2} + 7 {x}^{2}$


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Answer 1

Respuesta:

$4x^{2}$

Explicación paso a paso:

$5x^{2} -8x^{2} +7x^{2} =12x^{2} -8x^{2} =4x^{2}$