Question

2 x ao quadrado + 1 = 3x

Answer 1

2x²+1 = 3x
➩ 2x²-3x+1 = 0

∆ = b²-4ac
∆ = (-3)²-4×2×1
∆ = 9-8
∆ = 1

X = (-b±√∆) ÷ 2a
X = (3±1) ÷ 2×2

X' = 1 e X" = 1⁄2

Answer 2

2X²+1=3X

2X²-3X+1=0

Usando a Fórmula de Bhaskara

A=2

B=-3

C=1

X= -B ± √Δ Δ=B²-4.A.C

------------- Δ=9-4.2.1

2A Δ=1

X = 3 ± √1

-------------

4

X = 3±1

-------

4

_______ ____

| X = 2 | X = 4 | X=1 |

| ----- | ----- |____|

| 4 | 4

|_____ _|