English, asked by kavinkarthik81, 7 months ago

a^3 + 2a^2 - 4a + 1 when a = -1.​

Answers

Answered by TheWonderWall
3

\large\sf\underline{✰\:Given}

  • \sf\:a = -1

\large\sf\underline{✰\:To\:find}

  • \sf\:Numerical\:value\:of\:a^{3} + 2a^{2} - 4a + 1

\large\sf\underline{\:Solution}

\sf⟹\:a^{3} + 2a^{2} - 4a + 1

\sf⟹\:(-1)^{3} + 2 \times (-1)^{2} - 4 \times (-1)+ 1

\sf⟹\:-1 + 2 \times 1 - (-4) + 1

\sf⟹\:-1+ 2 + 4 + 1

\sf⟹\:1 + 4 + 1

\sf⟹\:5 + 1

\tt\pink{⟹\:6}

  • Thnku ❣
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