What We Will Learn Complete the square Solve by completing the square Needed Vocab Completing the square adding a constant to an expression to turn into a perfect square trinomial Ex 1 Completing the Square ID: 752945
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9.4 Solve by Completing the SquareSlide2
What We Will Learn
Complete the square
Solve by completing the squareSlide3
Needed Vocab
Completing the square:
adding a constant to an expression to turn into a perfect square trinomialSlide4
Ex. 1 Completing the Square
Complete the square:
A.
b = 3
Square = 9
Steps
1. find the b;
2. square the b over 2;
3. add the square to the end of the expressionB.
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Your Practice
Complete the square:
Complete the square:
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Ex. 2 Solving
Steps
1. TAKE OUT
GCF!!
2. complete the square
3. add square to both sides
4. combine like terms5. factorSquare root front and back number, use sign of middle
If fraction use square root of top and bottom
6. square root both sidesRemember there is a positive and negative answer7. solve for letter Slide7
Ex. 2 Cont.
Use completing the square
Solve
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Ex. 2 Cont.
Solve
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Your Practice
Solve
Going to be a decimal
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Ex. 3 Solving
Solve
Take a 2 out; remember that means divide EVERYTHING by 2
Steps
1. move number with no letter over = sign
2. same steps as example 2
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Your Practice
Solve