tyreegoines8904 tyreegoines8904

22-10-2019
Mathematics

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Solve each equation for x.a)x-1=0b)x+1=0 c)x²-1=0 d)x²+1=0

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wagonbelleville wagonbelleville

22-10-2019

Answer

given,

a) x-1=0

adding both side with 1

x = 1

b) x + 1 =0

subtracting both side by 1

x = -1

c) x²- 1 =0

x² = 1

taking square root

x = √1

x = 1

d) x²+ 1 =0

x² = -1

taking square root

x = √-1

x = i (iota)

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