Math, asked by rajridhan4, 5 months ago

Multiply:-

a. X2 -4x +7 by x-2

Answers

Answered by King412
303

       \green{\mid\green{\underline\green{\overline\frak{\red{ \large{SoluTion:-}}}}}}  \green\mid

-4x +7 by x-2

\implies x \times(x²-4x+7 ) -2(x²-4x+7 )

  \red{\implies \:  {x}^{3}  - 4 {x}^{2}  + 7x - 2 {x}^{2}  + 8x + 14}

  \color{lime}{\implies \:  {x}^{3}  - 4 {x}^{2}   - 2 {x}^{2}  + 8x  + 7x+ 14}

  \pink{\implies \:  {x}^{3}  - 6{x}^{2}     + 15x+ 14}

Answered by studylover001
40

Question :

Multiply :- x² - 4x + 7 by x - 2

Solution :

( x² - 4x + 7 ) ( x - 2 )

  • x ( x² - 4x + 7 ) - 2 ( x² - 4x + 7 )
  • x³ - 4x² + 7x - 2x² + 8x - 14
  • x³ - 6x² + 15x - 14

Answer :

x³ - 6x² + 15x - 14

Hope it helps you :)

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