Completing the Square HW

Front

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

Back

divide it by 2 and square the result

Front

When do you use the plus or minus symbol?

Back

Front

Back

Front

Back

64

Front

Back

100

Front

Back

Front

Back

Front

x² + 2x - 5 = 0

Back

x = -1 ± √6

Front

x² + 2x - 10 = 0

Back

x = -1 ± √11

Front

Solve the quadratic equation by completing the square: 5x²+50x+80=0

Back

{-8,-2}