Completing the Square

Front

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

Back

divide it by 2 and square the result

Front

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

Back

the -4x

Front

First step to solve by completing the square: a² + 10a + 21 = 0

Back

Subtract the 21

Front

What value of c would make this a perfect square trinomial?
x² +8x + c

Back

16

Front

What value of c would make this a perfect square trinomial?
x² + 2x + c

Back

1

Front

What value of c would make this a perfect square trinomial?
x² - 12x + c

Back

36

Front

When factoring
x² - 4x + 4 = 20,
what goes in the blank?
(x - __ )² = 20

Back

2

Front

Solve by completing the square.
y² + 10y = -9

Back

-1 and -9

Front

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

Back

X = −6 + √41 or −6 − √41

Front

Solve
 3x² + 5x - 12 = 0

Back

x = 4/3, x = -3