Supprimer les signes de multiplication superflusExercice

\left(4{,}5 -x\right) \times \left(10 +x\right) = 4{,}5x-10x

\left(4{,}5 -x\right) \times \left(10 +x\right) = 4{,}5 -x\left(10 +x\right)

\left(4{,}5 -x\right) \times \left(10 +x\right) = 4{,}5 -x10 +x

\left(4{,}5 -x\right) \times \left(10 +x\right) = \left(4{,}5 -x\right) \left(10 +x\right)

\left(1{,}6-0{,}2x\right) \times \left(10 +x\right) \times x = \left(1{,}6-0{,}2x\right) \left(10 +x\right) x

\left(1{,}6-0{,}2x\right) \times \left(10 +x\right) \times x = \left(1{,}6-0{,}2x\right) \left(10 +x\right) \times x

\left(1{,}6-0{,}2x\right) \times \left(10 +x\right) \times x = 1{,}6-0{,}2x10 +xx

\left(1{,}6-0{,}2x\right) \times \left(10 +x\right) \times x = 1{,}6-0{,}2x \left(10 +x\right) x

20{,}5 \times a

2\times 5a

20{,}5a

a

\left(1{,}6-x\right) \left(1{,}5+x\right)

1{,}6 -x\times x + 1{,}5

1{,}6-x \times 1{,}5 +x

\left(1{,}6-x\right) 1{,}5 x + x

75+6

\left(75+6\right)a

75 + 6a

75a + 6

\left(1{,}6-x\right) 1{,}5 x + x

\left(1{,}6-x\right) \left(1{,}5+x\right)

1{,}6-x \times 1{,}5 +x

1{,}6 -x\times x + 1{,}5

\left(2{,}5+ a\right) + \left(4{,}05 +2 b\right)

\left(2{,}5+1\right) a + \left(4{,}05 +2\right) b

\left(2{,}5a + a\right) \times a + \left(4{,}05b +2b\right) b

\left(2{,}5a+1\right) + \left(4{,}05b +2\right)