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Question
question
perform the operation.
$(7x^2 + x) - (9x^2 + 4x)$
Step1: Eliminar paréntesis
$7x^2 + x - 9x^2 - 4x$
Step2: Agrupar términos semejantes
$(7x^2 - 9x^2) + (x - 4x)$
Step3: Simplificar cada grupo
$-2x^2 - 3x$
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$-2x^2 - 3x$