Rezolva sistemele orin metoda substitutiei: a)x=5 b)x+y=1 3x+y=4 2x+3y=5 c)3x+6y=9 x+3y=4

To solve this integral, what you can do is split it up as follows: (1) ∫40(x2−4)dx=∫40(x2)dx−∫40(4)dx. to integrate  4  as an  indefinite integral, a good rule of thumb is  by  an equation below  for  polynomials; . (2) ∫xa=xa+1a+1+c , where a is any number. c denotes some constant that is crucial when doing 

Iwould say either b or ci could be wrong let me know