Bonsoir,
Simplifier les expressions suivantes.
a) 3 x a + 7 x b = 3a+7b
b) 13 x a x a x 5 = 65a²
c) 4 x a + 2 x b + a x 3 = 4a+2b+3a= 7a+2b
bonjour
a ) 3 x a + 7 x b = 3 a + 7 b
b ) 13 x a x a x 5 = 65 a²
c ) 4 x a + 2 x b + a x 3 = 4 a + 2 b + 3 a = 7 a + 2 b
