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Mathematics, 29.11.2019 13:31 Uhmjujiooo4220

Find the error, rashid and tia solve the quadratic equation (2x2-8x +10=0) by completing the square. who is correct? explain your reasoning.

rashid
2x^2βˆ’8x+10=0
2x^2βˆ’8x=βˆ’10
2x^xβˆ’8x+16=βˆ’10+16
(xβˆ’4)2=6
xβˆ’4=Β±6β€“βˆš
x=4Β±6β€“βˆš

tia
2x^2βˆ’8x+10=0
x^2βˆ’4x=0βˆ’5
x^2βˆ’4x+4=βˆ’5+4
(xβˆ’2)2=βˆ’1
xβˆ’2=Β±i
x=2Β±i

ansver
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