check whether the following are quadratic equation x square-2x=(-2)(3-x)
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x²-2x=(-2)(3-x)
x²-2x=-6+2x
x²-4x+6=0
now solve on this formula
- B ± √ B2-4AC
x = ————————
2A
In our case, A = 1
B = -4
C = 6
Accordingly, B2 - 4AC =
16 - 24 =
-8
Applying the quadratic formula :
4 ± √ -8
x = —————
2
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