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zhenyamylkin63
@zhenyamylkin63
July 2021
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2*(5-y^2)(y^2+5)+(y^2-3)^2-(y^2+y-1)(4-y^2)
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DREAM101
Выражение: 2*(5-y^2)*(y^2+5)+(y^2-3)^2-(y^2+y-1)*(4-y^2)
Ответ: 63-11*y^2-y*4+y^3
Решаем по шагам:
1. (10-2*y^2)*(y^2+5)+(y^2-3)^2-(y^2+y-1)*(4-y^2)
2. 50-2*y^4+(y^2-3)^2-(y^2+y-1)*(4-y^2)
3. 50-2*y^4+y^4-6*y^2+9-(y^2+y-1)*(4-y^2)
4. 50-y^4-6*y^2+9-(y^2+y-1)*(4-y^2)
5. 59-y^4-6*y^2-(y^2+y-1)*(4-y^2)
6. 59-y^4-6*y^2-(5*y^2-y^4+y*4-y^3-4)
7. 59-y^4-6*y^2-5*y^2+y^4-y*4+y^3+4
8. 59-y^4-11*y^2+y^4-y*4+y^3+4
9. 59-11*y^2-y*4+y^3+4
10. 63-11*y^2-y*4+y^3
Решаем по действиям:
1. 2*(5-y^2)=10-2*y^2
2. (10-2*y^2)*(y^2+5)=50-2*y^4
3. (y^2-3)^2=y^4-6*y^2+9
4. -2*y^4+y^4=-1*y^4
5. 50+9=59
6. (y^2+y-1)*(4-y^2)=5*y^2-y^4+y*4-y^3-4
7. 59-y^4-6*y^2-(5*y^2-y^4+y*4-y^3-4)=59-y^4-6*y^2-5*y^2+y^4-y*4+y^3+4
8. -6*y^2-5*y^2=-11*y^2
9. -y^4+y^4=0
10. 59+4=63
1 votes
Thanks 2
zhenyamylkin63
ещё варианты
DREAM101
дРУГИХ НЕЗНАЮ
DREAM101
еЩЕ МОЖНО ЧТОБЫ ПРОСТО ПОЛУЧИЛОСЬ 63
zhenyamylkin63
там ответ :y^2-11y^2-4y+63
zhenyamylkin63
нужно решение
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Answers & Comments
Ответ: 63-11*y^2-y*4+y^3
Решаем по шагам:
1. (10-2*y^2)*(y^2+5)+(y^2-3)^2-(y^2+y-1)*(4-y^2)
2. 50-2*y^4+(y^2-3)^2-(y^2+y-1)*(4-y^2)
3. 50-2*y^4+y^4-6*y^2+9-(y^2+y-1)*(4-y^2)
4. 50-y^4-6*y^2+9-(y^2+y-1)*(4-y^2)
5. 59-y^4-6*y^2-(y^2+y-1)*(4-y^2)
6. 59-y^4-6*y^2-(5*y^2-y^4+y*4-y^3-4)
7. 59-y^4-6*y^2-5*y^2+y^4-y*4+y^3+4
8. 59-y^4-11*y^2+y^4-y*4+y^3+4
9. 59-11*y^2-y*4+y^3+4
10. 63-11*y^2-y*4+y^3
Решаем по действиям:
1. 2*(5-y^2)=10-2*y^2
2. (10-2*y^2)*(y^2+5)=50-2*y^4
3. (y^2-3)^2=y^4-6*y^2+9
4. -2*y^4+y^4=-1*y^4
5. 50+9=59
6. (y^2+y-1)*(4-y^2)=5*y^2-y^4+y*4-y^3-4
7. 59-y^4-6*y^2-(5*y^2-y^4+y*4-y^3-4)=59-y^4-6*y^2-5*y^2+y^4-y*4+y^3+4
8. -6*y^2-5*y^2=-11*y^2
9. -y^4+y^4=0
10. 59+4=63