Solving Quadratics

Front

Determine the values of a, b, and c for the quadratic equation: 4x² – 8x = 3

Back

a = 4, b = -8, c = -3

Front

Is Suzie correct in solving the equation (x - 2)(x + 6) = 2 by setting x - 2 = 0 and x + 6 = 0? Why or why not?

Back

No, she did factor correctly, but she can't use the zero product property as shown.

Front

What should you do first in solving this equation?
x² + 6x - 13 = 3

Back

Make it equal 0 by subtracting 3 on each side

Front

In the equation
y = x² +5x +7, match each leading coefficient with its correct letter.

Back

a=1, b=5, c=7

Front

Solve by taking the square root: 9k² = 225

Back

-5, 5

Front

Solve by factoring: 3x^2 + 5x + 2 = 0

Back

x = -2/3 and x = -1

Front

Factor: 49x² - 100

Back

(7x - 10)(7x + 10)

Front

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

Back

divide it by 2 and square the result

Front

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

Back

Subtract the 21

Front

Complete the Square
x² + 6x = 5

Back

(x + 3)² = 14