Completing the Square & Quadratic Formula

Front

To solve by completing the square, what needs to be moved in this equation?
x² = 9 - 4x

Back

the -4x

Front

What is the first step to solving THIS equation by completing the square?
a² + 10a + 21 = 0

Back

Subtract the 21

Front

When do you use the plus or minus symbol (±)?

Back

After taking the square root of both sides

Front

Use the quadratic formula to find the solutions for y = -x^2 - 5x + 12

Back

Front

What is one of the solutions to this equation?
(2x - 1)² = 49
Options: 7, -7, -4, -3

Back

-3

Front

Solve by completing the square.
x² +12x = 5

Back

X = −6 + √41 or −6 − √41

Front

What do you do to the b value to correctly complete the square?

Back

divide it by 2 and square the result

Front

Complete the square for
x² + 12x + ____

Back

x² + 12x + 36

Front

Solve Using the Quadratic Formula: 2x² + 7x - 15 = 0

Back

-5 or 1.5

Front

Out of all of the methods we have learned for solving quadratic functions, which method is your favorite?

Back

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