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Olá.
![A-B+C\\\\\\(5x^3+2x^2-3)-(x^3+7x^2-8)+(5x^2-1)=0\\5x^3+2x^2-3-x^3-7x^2+8+5x^2-1=0\\5x^3-x^3+2x^2-7x^2+5x^2-3-1+8=0\\4x^3+7x^2-7x^2-4+8=0\\4x^3+4=0\\4x^3=-4\\\\x^3=\dfrac{-4}{4}\\\\x^3=-1\\x=\sqrt[3]{-1}\\\\\boxed{x=-1}](https://tex.z-dn.net/?f=A-B%2BC%5C%5C%5C%5C%5C%5C%285x%5E3%2B2x%5E2-3%29-%28x%5E3%2B7x%5E2-8%29%2B%285x%5E2-1%29%3D0%5C%5C5x%5E3%2B2x%5E2-3-x%5E3-7x%5E2%2B8%2B5x%5E2-1%3D0%5C%5C5x%5E3-x%5E3%2B2x%5E2-7x%5E2%2B5x%5E2-3-1%2B8%3D0%5C%5C4x%5E3%2B7x%5E2-7x%5E2-4%2B8%3D0%5C%5C4x%5E3%2B4%3D0%5C%5C4x%5E3%3D-4%5C%5C%5C%5Cx%5E3%3D%5Cdfrac%7B-4%7D%7B4%7D%5C%5C%5C%5Cx%5E3%3D-1%5C%5Cx%3D%5Csqrt%5B3%5D%7B-1%7D%5C%5C%5C%5C%5Cboxed%7Bx%3D-1%7D%0A "A-B+C\\\\\\(5x^3+2x^2-3)-(x^3+7x^2-8)+(5x^2-1)=0\\5x^3+2x^2-3-x^3-7x^2+8+5x^2-1=0\\5x^3-x^3+2x^2-7x^2+5x^2-3-1+8=0\\4x^3+7x^2-7x^2-4+8=0\\4x^3+4=0\\4x^3=-4\\\\x^3=\dfrac{-4}{4}\\\\x^3=-1\\x=\sqrt[3]{-1}\\\\\boxed{x=-1}")
Qualquer dúvida, deixe nos comentários.
Bons estudos.
Qualquer dúvida, deixe nos comentários.
Bons estudos.
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