Question

16. Упростите.
1) x (x + 1)' - (x-1)'
3) a (a + 1) (a + 2) - (a + 3)'
2) x (x - 1) - (x - 1)
4) (2а + 1) (за - 2) (a - 1) - (a+2)

Answer 1

1) x (x + 1)' - (x-1)' = x-1

3) a (a + 1) (a + 2) - (a + 3)' = (a²+a)(a+2)-1=a³+2a²+a²+2a-1=a³+3a²+2a-1 дальше хз, нужно ли упрощать еще

2) x (x - 1) - (x - 1)= (x-1)(x-1)=x²-x-x+1=x²-2x+1=(x-1)²