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17-08-2018
Mathematics

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w(x)=x^2+x ; Find w(-3x)

Respuesta :

17-08-2018

If w(x) = x² + x

w(-3x) = (-3x)² + (-3x)

= 9x² - 3x

= -3x(3x + 1)

w(-3x) = - 3x(3x + 1)

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