Sagot :
Bonjour,
7a + 21 = 7 * a + 7 * 3 = 7(a + 3)
14a - 35 = 7 * 2 * a - 7 * 5 = 7(2a - 5)
10x + 5 = 5 * 2 * x + 5 = 5(2x + 1)
7a+21 =
7a+7×3 =
7×(a+3)
14a-35=
14a-14×2,5=
14×(a-2,5)
10x+5=
5×5x+5=
5×(x+5)
Bonjour,
7a + 21 = 7 * a + 7 * 3 = 7(a + 3)
14a - 35 = 7 * 2 * a - 7 * 5 = 7(2a - 5)
10x + 5 = 5 * 2 * x + 5 = 5(2x + 1)
7a+21 =
7a+7×3 =
7×(a+3)
14a-35=
14a-14×2,5=
14×(a-2,5)
10x+5=
5×5x+5=
5×(x+5)