2x^2-1/2x=9 solve it using factorisation method.
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Answer:
x=5
Step-by-step explanation:
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Step-by-step explanation:
2x²-1/2x=9
multiply by 2
4x²-x-18=0
4x²+8x-9x-18=0
4x(x+2)-9(x+2)=0
(x+2)(4x-9)=0
x = -2 or 9/4
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