Question

se puder colocar conta agradeço

x²-2x=2x-4

Answer 1

S = {2}

x²-2x=2x-4

x²-2x-2x+4 = 0

x²-4x+4 = 0, sendo a = 1, b = -4, c = 4

∆ = b²-4ac

∆ = (-4)²-4(1)(4)

∆ = 16-169@

∆ = 0

-b+-√∆/2.1

-(-4)+-√0/2

4+-0/2

x¹ e x² = 4/2 = 2

S = {2}

❤️ Bom estudo ❤️

05/12/21