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and the expression to a polynomial in standard for $(4x - 1)(-x^2 + 6x …

Question

and the expression to a polynomial in standard for
$(4x - 1)(-x^2 + 6x + 9)$

Explanation:

Step1: Aplicar la propiedad distributiva

$4x(-x^2 + 6x + 9) - 1(-x^2 + 6x + 9)$

Step2: Expandir cada término

$-4x^3 + 24x^2 + 36x + x^2 - 6x - 9$

Step3: Agrupar términos semejantes

$-4x^3 + (24x^2 + x^2) + (36x - 6x) - 9$

Step4: Simplificar los términos

$-4x^3 + 25x^2 + 30x - 9$

Answer:

$-4x^3 + 25x^2 + 30x - 9$