Question

Find the roots of the quadratic equation x2
-3x+4=0​

Answer 1

Answer:

2

Step-by-step explanation:

Answer 2

Step-by-step explanation:

• Explanation:
• For this, you need a concept of imaginary numbers
• x
• 2
• +
• 4
• =
• 0
• ⇒
• x
• 2
• +
• 4
• −
• 4
• =
• 0
• −
• 4
• (Subtracting
• 4
• from both sides)
• ⇒
• x
• 2
• =
• −
• 4
• ⇒
• x
• =
• √
• −
• 4
• ⇒
• x
• =
• √
• −
• 1
• ×
• 4
• ⇒
• x
• =
• ±
• 2
• √
• −
• 1
• (The value of
• √
• −
• 1
• is
• i
• )
• ⇒
• x
• =
• ±
• 2
• i
• Hope this helps :)