Quadratic formula
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Quadratic Formula
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Transcript of Quadratic formula
Quadratic Formula
https://www.youtube.com/watch?v=ZBVYahon6EY
Pre-req's for this lesson:
- "plug it in"
- identify coefficients
- simplify radicals
- add/subtract
- memorize a long formula!
x2 + 7x + 12
Objective: use the quadratic formula to find x!
x2 + 7x + 12STEP 1: identify coefficients:
STEP 2: plug it into the formula!
2a-b ± b2 - 4ac
a=_____ b=_____ c=_____
2a-b ± b2 - 4ac
a=1 b=7 c=12
Try it on your own! **find x using the Q.F.
x2 - 6x + 7
Try it on your own! **find x using the Q.F.
x2 - 4x + 6