Question

$7 {x}^{2} - 10 = 0$

Answer 1

Δ = b2 - 4.a.c

Δ = 02 - 4 . 7 . -10

Δ = 0 - 4. 7 . -10

Δ = 280

x = (-b +- √Δ)/2a

x' = (-0 + √280)/2.7 x'' = (-0 - √280)/2.7

x' = 16,73320053068151 / 14 x'' = -16,73320053068151 / 14

x' = 1,1952286093343936 x'' = -1,1952286093343936