Solving Quadratics
Presentation
•
Mathematics
•
11th Grade
•
Easy
Standards-aligned
Charles Dillard
Used 159+ times
FREE Resource
5 Slides • 9 Questions
1
Let’s solve quadratic equations.
2
Open Ended
The expression x2 + 8x + 16 is equivalent to (x + 4)2.
Is there an expression equivalent to (x + n)2 for some number n?
x2 + 10x + 25
3
Open Ended
The expression x2 + 8x + 16 is equivalent to (x + 4)2.
Is there an expression equivalent to (x + n)2 for some number n?
x2 + 10x + 29
4
Open Ended
The expression x2 + 8x + 16 is equivalent to (x + 4)2.
Is there an expression equivalent to (x + n)2?
x2 - 6x + 8
5
Open Ended
The expression x2 + 8x + 16 is equivalent to (x + 4)2.
Is there an expressions equivalent to (x + n)2 for?
x2 - 6x + 9
6
One good way to recognize if a trinomial is perfect square is to look at its first and third term. If they are both squares, there's a good chance that you may be working with a perfect square trinomial.
(x + 7)2
Let's say we're working with the following: x2+14x+49
7
8
(Use only when there is an quadratic equation which equals 0)
9
Open Ended
Solve each quadratic equation with the method of your choice. Compare with a partner who used a different method.
x2 = 100
10
Open Ended
Solve each quadratic equation with the method of your choice. Compare with a partner who used a different method.
x2 = 38
11
Open Ended
Solve each quadratic equation with the method of your choice. Compare with a partner who used a different method.
x2 - 10x + 25 = 0
12
Open Ended
Solve each quadratic equation with the method of your choice. Compare with a partner who used a different method.
x2 +14x + 40 = 0
13
Open Ended
Solve each quadratic equation with the method of your choice. Compare with a partner who used a different method.
x2 + 14x + 39 = 0
14
I can solve quadratic equations by completing the square or by using the quadratic formula.
Learning targets
Let’s solve quadratic equations.
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