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pelmen5
@pelmen5
October 2021
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3x-9 дробь 2x^2-5x-3 сократить дробь
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прр40
2x²-5x-3=0
D=25-4*2*(-3)=25+24=49
x=5+7дробь 4=3
x=5-7дробь 4= -0,5
2x²-5x-3=2(x-3)(x+0,5)
3x-9=3(x-3)
3(x-3) дробь 2(x-3)(x+0,5)=
=3 дробь 2х+1
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Answers & Comments
D=25-4*2*(-3)=25+24=49
x=5+7дробь 4=3
x=5-7дробь 4= -0,5
2x²-5x-3=2(x-3)(x+0,5)
3x-9=3(x-3)
3(x-3) дробь 2(x-3)(x+0,5)=
=3 дробь 2х+1