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core 1 maths problem please help

I have this maths question and i dont know why I'm not getting the right answer. Could someone please point out where I'm going wrong?


show that the line y=2x-5 never meets the curve y=x^2-4x+5


so I know I need to find an equation with no real roots


I did 2x-5=x^2-4x+5


then i formed a quadratic


x^2-6x=0


b^2-4ac


36-4x1
= 32


32>0


please tell me what im doing wrong. It is not a negative number?
You have made a mistake when calculating the quadratic equation. Look at it again and you will realise what you did wrong :smile:
Original post by moment of truth
You have made a mistake when calculating the quadratic equation. Look at it again and you will realise what you did wrong :smile:


OH you add the 5?! I'm stupid sometimes
Original post by wednesday_adams
OH you add the 5?! I'm stupid sometimes


Yeahh, and don't worry that happens to all of us.

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