Question

b) 2x2+8x+6=0

resolva usando fórmula de bhaskara

Answer 1

2x ² + 8x + 6 = 0

a = 2

b = 8

c = 6

Δ = (8 ²) - 4 . 2 . 6

Δ = 64 - 48

Δ = 16

X = - 8 +- √16 ÷ 2 . 2

X = - 8 + 4 ÷ 4 = - 4 ÷ 4 = - 1

X = - 8 - 4 ÷ 4 = - 12 ÷ 4 = -3

S = {-1, -3}

Answer 2

2x² + 8x + 6 = 0

Δ = 8² - 4.2.6

Δ = 64 - 48

Δ = 16

x' = -1

x'' = -3

S= {-1,-3}