leonorcardosocarvalh leonorcardosocarvalh

08-03-2020
Mathematics

contestada

simplificar este polinómio:
(5x-3)²-4x²-3x

Respuesta :

Matheng Matheng

16-03-2020

Answer:

21 x² - 33x + 9

Step-by-step explanation:

It is required to simplify (5x-3)²-4x²-3x

So,

(5x-3)²-4x²-3x

= (5x-3) (5x-3) -4x²-3x

= 25 x² - 30x + 9 - 4x² - 3x

Combine like terms

= 25 x² - 4x² - 30x - 3x + 9

= 21 x² - 33x + 9

(5x-3)²-4x²-3x in a simplified form is⇒ 21 x² - 33x + 9

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