Question

FÓRMULA DE BHÁSKARA.
x

Answer 1

x² - 7x + 6 = 0
Δ= 49 - 4.1.6
Δ= 49 - 24
Δ= √25
Δ=5

x= 7 +\- √25/ 2.1=

x'= 7 + 5/2= 12/2= 6

x" 7 - 5/2= 2/2= 1



x² + 3x - 10 = 0
Δ= 9 - 4.1.(-10)
Δ= 9 + 40
Δ= √49
Δ= 7

x = -3 +\- √49/2

x'= -3 + 7/2 = 4/2= 2

x"= -3 -7/2 = -10/2= -5



x² + 2x + 1 = 0
Δ= 4 - 4.1.1
Δ= 4 - 4
Δ= √0
Δ= 0

x= -2 +\- √0/ 2

x'= -2 + 0/2 = -2/2= -1

x"= -2 - 0/2= -2/2= -1

Espero ter ajudado. :)