4x2 - 6x-1 = 0 Help please

Mathematics

1 answer:

svp [43]4 years ago

4 0

Good evening

Answer:

x = (3 + √13)/4

x = (3 - √13)/4

Step-by-step explanation:

Firstly let’s calculate the discriminant Δ

Δ = (-6)² - 4(4)(-1) = 36 + 16 = 52 then √Δ = √52 = 2√13

then

x = (6 ± 2√13)/8

then

x = (3 ± √13)/4

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