Question

Me ajudem (abram a imagem)​

Answer 1

Roi,

Iremos substituir o x pelo -2, no caso:

5x³ + 9x² - 3x

5.(-2)³ + 9.(-2)² - 3.(-2)

5 . (-8) + 9 . 4 - 3 . (-2)

-40 + 36 + 6

Resposta Finale: 42 - 40 = 2

Valeu.. :)

Answer 2

ao calcularmos essa expressão,vamos obter a Resposta 2

Temos:

$\Large{ \rm X=-2 }$

Cálculos:

$\large\red{\boxed{\orange{\boxed{\blue{\begin{array}{l} \rm 5\times\big(-2\big)^{3}+9\times\big(-2\big)^{2}-3\times\big(-2\big) \\ \\ \rm 5\times\big(-2\big)^{3}+9\times\big(-2\big)^{2}+3\times2 \\ \\ \rm -2\Big(5\times\big(-2\big)^{2}-9\times2-3\Big) \\ \\ \rm -2\Big(5\times2^{2}-18-3\Big) \\ \\ \rm -2\big(5\times4-18-3\big) \\ \\ \rm -2\big(20-18-3\big) \\ \\ \rm -2\times(-1) \\ \\ \rm 2 \end{array}}}}}}$

Obtemos a Resposta:

$\LARGE{ \sf 2 }$

$\Large{\text{\tt Bons\:estudos}}$

$\bf\large{\underline{\qquad \qquad \qquad \qquad \qquad \qquad \quad }}\LaTeX$✍

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