jenesis50 jenesis50

28-02-2020
Mathematics

contestada

Solve x2 – 8x = 20 by completing the square. Which is the solution set of the equation?

Respuesta :

profarouk profarouk

28-02-2020

Answer:

x=2 , x = 6

Step-by-step explanation:

x² – 8x = 20 ⇌ x² – 2(4)x = 4 + 16 ⇌ x² – 2(4)x - 16 = 4 ⇌ (x - 4)² = 4

⇌ x - 4 = 2 or x - 4 = -2 ⇌ x = 6 or x = 2

Answer Link

eronmills eronmills

16-07-2021

Answer:

x= -2 and x=10

Step-by-step explanation:

Answer Link

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