Question

(-3x²-x+3)-(4x²-2x-1)

Answer 1

Resposta:

−32−+3)−(42−2−1)

(-3x^{2}-x+3)-\left(4x^{2}-2x-1\right)(−3x2−x+3)−(4x2−2x−1)

(−32−+3)−42+2+1

(-3x^{2}-x+3)-4x^{2}+2x+1(−3x2−x+3)−4x2+2x+1

2

Elimine os parênteses

(−32−+3)−42+2+1

(-3x^{2}-x+3)-4x^{2}+2x+1(−3x2−x+3)−4x2+2x+1

−32−+3−42+2+1

-3x^{2}-x+3-4x^{2}+2x+1−3x2−x+3−4x2+2x+1

3

Calcule a soma

−32−+3−42+2+1

-3x^{2}-x+{\color{#c92786}{3}}-4x^{2}+2x+{\color{#c92786}{1}}−3x2−x+3−4x2+2x+1

−32−+4−42+2

-3x^{2}-x+{\color{#c92786}{4}}-4x^{2}+2x−3x2−x+4−4x2+2x

4

Combine os termos semelhantes

−32−+4−42+2

{\color{#c92786}{-3x^{2}}}-x+4{\color{#c92786}{-4x^{2}}}+2x−3x2−x+4−4x2+2x

−72−+4+2

{\color{#c92786}{-7x^{2}}}-x+4+2x−7x2−x+4+2x

5

Combine os termos semelhantes

−72−+4+2

-7x^{2}{\color{#c92786}{-x}}+4+{\color{#c92786}{2x}}−7x2−x+4+2x

−72+1+4

-7x^{2}+{\color{#c92786}{1x}}+4−7x2+1x+4

6

Multiplique por 1

−72+1+4

-7x^{2}+1x+4−7x2+1x+4

−72++4

-7x^{2}+x+4−7x2+x+4

Solução

−72++4

Explicação passo-a-passo:

Espero ter ajudado.