Question 1 : 2a x a+1 x a = ??
Question 1 : 2a x a+1 x a =
réponse :
2a*a+1*a
=2a²+a
2 a × a + 1 × a = 2 (a × a) + 1 × a
= 2a² + 1a
= 2a² + a
