2 * (5-y^2) (y^2+5) + (y^2-3) ^2 - (y^2+y-1) (4-y^2)

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