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MRCROSBY
@MRCROSBY
July 2022
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5:x-3-8:x=3 решит пожалуйста
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Verified answer
5x - 8(x - 3) = 3x(x - 3)
5x - 8x + 24 = 3x^2 - 9x
- 3x + 24 = 3x^2 - 9x
3x^2 - 6x - 24 = 0 /:3
x^2 - 2x - 8 = 0
D = 4 + 32 = 36
x1 = ( 2 + 6)/2 = 8 /2 = 4
x2 = ( 2 - 6)/2 = - 4/2 = - 2
2; 4
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Answers & Comments
Verified answer
5x - 8(x - 3) = 3x(x - 3)5x - 8x + 24 = 3x^2 - 9x
- 3x + 24 = 3x^2 - 9x
3x^2 - 6x - 24 = 0 /:3
x^2 - 2x - 8 = 0
D = 4 + 32 = 36
x1 = ( 2 + 6)/2 = 8 /2 = 4
x2 = ( 2 - 6)/2 = - 4/2 = - 2
2; 4