X² - 2x + 2 factorise – InterviewSolution

1.	X² - 2x + 2 factorise
Answer» Step-by-step explanation: Explanation: This is not factorable normally. We can SEE this since x2−2x+1 is a perfect square, so it touches the x-axis at a single root. Adding 1 to this produces x2−2x+2 , and raises the graph of y=x2−2x+1 one UPWARDS, meaning it no LONGER touches the x-axis, so it has no REAL roots.

X² - 2x + 2 factorise

Answer»

Step-by-step explanation:

Explanation: This is not factorable normally. We can SEE this since x2−2x+1 is a perfect square, so it touches the x-axis at a single root. Adding 1 to this produces x2−2x+2 , and raises the graph of y=x2−2x+1 one UPWARDS, meaning it no LONGER touches the x-axis, so it has no REAL roots.

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X² - 2x + 2 factorise