How to apply Quadratic Formula
Storyboard Text
- Sige po
- Using quadratic formula solve this x2−2x+5=0
- Quadratic Formula ax2 + bx + c = 0
- OK po maam
- 2.YES
- How can i solve this equation i forgot the formula.
- Can i sit here.
- No
- Are you done ?
- Maam may i help kate to answer the question
- 1. What is the answer kate
- 2. Yes you may.
- Sorry maam i dont know the answer
- 1.We will just determine the values of a, b, and c and then apply the formula.a=1a=1, b=−2b=−2 , c=5
- 2.Applying the formula: X = -b ± √(b² - 4ac) 2a= − (-2) ± √(-2)2 -4 (1) ( 5) 2(1) = 2 ± √4−20 2 = 2 ± √−16 2
- 3.A negative value under the square root means that4.there are no real solutions to this equation√−16= 4iThis allows us to keep simplifying. x= 2±4i =1±2i25.The solutions to this quadratic equation are: x=1+2i , x=1–2i
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