Quadratic formula
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Quadratic formula SOME EXAMPLES….
Transcript of Quadratic formula
Quadratic formulaSOME EXAMPLES….
Write this down…
When you have a quadratic in the form , you can find the solutions (roots or zeros) by using the quadratic formula.
Only replace a, b and c with numbers!
No x’s.
Examples…
The first one is easy…
Hint, list out a=___, b=___ and c=___. Remember they are numbers, no variables allowed.
This one has two real solutions that are rational.
Did you get it? Here is the next one…
Hint: First, get it to say =0, then list a=___, b=___ and c=____
This one had 2 real solutions. They are irrational because the number of the radical is not a perfect square.
Last one…
Hint: get it in standard form ( 1st.
You only have one solution on this one andIt is rational. If the number under the Radical is zero, you will only have one solution.
