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SuperMiha1
@SuperMiha1
August 2021
1
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1-5 решите пожалуйстаа
3 вариант
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litanalove
1)
p(x)=3x²+2x-1+x^3-3x²
p(x)=x^3+2x-1
2) a) =2x²-8x
b) =x^3*y+x²y^3
значок ^ обозначает в степени
3) a) (3x+1)²=9x²+6x+1
b) (x-y^3)²=x²-xy^3 +y^6
4) a^3(a²+a^5-2)/(-a^3) +
+(4a²-9)= -(a²+a^5-2)+4a²-9
= -a²-a^5+2+4a²-9=
=3a²-a^5-7=3-1-7=3-8= -5
5)
(2x+5)(3x-7)+(4x²-1)=
=(5x+3)(2x-5)
6x²-14x+15x-35+4x²-1=
=10x²-25x+6x-15
10x²+x-36-10x²+19x+15=0
20x-21=0
20x=21
x=21/20
x=1.05
1 votes
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Answers & Comments
p(x)=3x²+2x-1+x^3-3x²
p(x)=x^3+2x-1
2) a) =2x²-8x
b) =x^3*y+x²y^3
значок ^ обозначает в степени
3) a) (3x+1)²=9x²+6x+1
b) (x-y^3)²=x²-xy^3 +y^6
4) a^3(a²+a^5-2)/(-a^3) +
+(4a²-9)= -(a²+a^5-2)+4a²-9
= -a²-a^5+2+4a²-9=
=3a²-a^5-7=3-1-7=3-8= -5
5)
(2x+5)(3x-7)+(4x²-1)=
=(5x+3)(2x-5)
6x²-14x+15x-35+4x²-1=
=10x²-25x+6x-15
10x²+x-36-10x²+19x+15=0
20x-21=0
20x=21
x=21/20
x=1.05