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sablukov19
@sablukov19
August 2022
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Упростить выражение
1) 33x+(x-6)(5x+2)-5(x+4)(x-3)
2) 5a^2-(2а-3)^2-4а(3-а)-5(а-2)(а+2)
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Answers & Comments
Flash3146
1) 33x+(x-6)(5x+2)-5(x+4)(x-3)=
33x+(5x²+2x-30x-12)-5(x²-3x+4x-12)=
33x+5x²-28x-12-5x²+15x-20x+60=
48
2) 5a^2-(2а-3)^2-4а(3-а)-5(а-2)(а+2)=
5a²-(4a²-12a+9)-12a+4a²-5(a²-4)=
5a²-4a²+12a-9-12a+4a²-5a²+20=11
1 votes
Thanks 1
sedinalana
1) 33x+(x-6)(5x+2)-5(x+4)(x-3)=33x+5x²+2x-30x-12-5x²+15x-20x+60=48
2) 5a^2-(2а-3)^2-4а(3-а)-5(а-2)(а+2)=5a
²-4a²+12a-9-12a+4a²-5a²+20=11
0 votes
Thanks 0
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Answers & Comments
33x+(5x²+2x-30x-12)-5(x²-3x+4x-12)=
33x+5x²-28x-12-5x²+15x-20x+60=
48
2) 5a^2-(2а-3)^2-4а(3-а)-5(а-2)(а+2)=
5a²-(4a²-12a+9)-12a+4a²-5(a²-4)=
5a²-4a²+12a-9-12a+4a²-5a²+20=11
2) 5a^2-(2а-3)^2-4а(3-а)-5(а-2)(а+2)=5a²-4a²+12a-9-12a+4a²-5a²+20=11