solve x^2-2x=0
Let's solve in ℝ: x2 -2x = 0
You can write the expression: x2 -2x in factored form: x·(x -2)
A product is zero if and only if one of its factors is zero: we solve each factor equal to 0
⇥Let's solve in ℝ: x = 0
⇥Solution obtained: x = 0
⇥Let's solve in ℝ: x -2 = 0
⇥Solution obtained: x = 2
▶Solution:   x = { 0, 2 }