Koalanet21
New member
- Joined
- Jun 16, 2020
- Messages
- 12
I have a problem in my process.
I can do these steps :
Step0: y=-2x²+x+1
Step1: y=-2(x²-(1/2)x)+1
Step2: (1/2)²=1/4
Step3: y=-2(x²-(1/2)x+1/4)+1-(1/4)(-2)
And then I cannot find a number which multiplied gives 1/4 and added gives 1/2.
It could have been 1/2 if in Step3, there had been -x instead of - (1/2) x. But it's not the case and I can't find an error at Step 0, 1 or 2.
Please, can someone help me?
I can do these steps :
Step0: y=-2x²+x+1
Step1: y=-2(x²-(1/2)x)+1
Step2: (1/2)²=1/4
Step3: y=-2(x²-(1/2)x+1/4)+1-(1/4)(-2)
And then I cannot find a number which multiplied gives 1/4 and added gives 1/2.
It could have been 1/2 if in Step3, there had been -x instead of - (1/2) x. But it's not the case and I can't find an error at Step 0, 1 or 2.
Please, can someone help me?