Math, asked by kutwalman, 11 months ago

If x = 3-v2, then find the value of 3x² + 2x -4.​

Answers

Answered by ihrishi
0

Answer:

3 {x}^{2}  + 2x - 4 \\  = 3(3 -  \sqrt{2} )^{2}  + 2(3 -  \sqrt{2} ) - 4 \\  = 3(9 + 2 - 6 \sqrt{2} ) + 6 - 2 \sqrt{2}  - 4 \\  = 3(11 - 6 \sqrt{2} ) + 2 - 2 \sqrt{2}  \\  = 33 - 18 \sqrt{2}  + 2 - 2 \sqrt{2}  \\  = 35 - 20 \sqrt{2}  \\

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