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what is (x^)3 + (3x)^3 +3x +1 divided by 5 +2x

Posted by Stella Antony 6 years, 5 months ago

CBSE > Class 09 > Mathematics

1 answers

Sia ? 6 years, 5 months ago

Let p(x) = x³ + 3x² + 3x + 1
5 + 2x = 0
{tex}\Rightarrow{/tex} 2x = -5
{tex}\Rightarrow{/tex} x = -{tex}\frac{5}{2}{/tex}
= (-{tex}\frac{5}{2}{/tex})³ + 3(-{tex}\frac{5}{2}{/tex})² + 3(-{tex}\frac{5}{2}{/tex}) + 1
= -{tex}\frac{125}{8}{/tex} + {tex}\frac{75}{4}{/tex} - {tex}\frac{15}{2}{/tex} + 1 = -{tex}\frac{27}{8}{/tex}

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CBSE > Class 09 > Mathematics