Réponses

  • Omnes
  • Modérateur confirmé
2014-02-09T22:58:58+01:00
2014-02-09T23:10:36+01:00
A(x)=4x[auCarré]-1(2x+1)(x+3) =
A(x) = ax² - 1( 2x+1) ( x+3)

A( -1/2)
A( -1/2) = 4* (-1/2)² - 1 (2 * (-1/2) +1) ( -1/2 +3)
A (-1/2) = 4*1/4 - 1 (-1+1) ( -1/2+3)
A(-1/2) =  1

A(0)
A(0) = 4* 0² - 1 (2*0 +1) (0+3)
A (0) = 0 - 1*1*3
A(0) = -3