(iii) 2x2 -5√2x + 4 = 0 find the discriminate
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D=b^2-4ac
=(-5root2)-4(2)(4)
=50-32
=18
Therefore discriminant is 18
=(-5root2)-4(2)(4)
=50-32
=18
Therefore discriminant is 18
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2×2-5√2x = 0
- 4+4- 5√2x = 0
- 8- 5√2x = 0
- -5√2x = -8
- x= -8+ 5√2
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