Solving Quadratics by factoring

Front

What is a quadratic equation?

Back

A quadratic equation is a polynomial equation of the form ax² + bx + c = 0, where a, b, and c are constants and a ≠ 0.

Front

What does it mean to factor a quadratic equation?

Back

Factoring a quadratic equation means expressing it as a product of two binomials, such as (x - p)(x - q) = 0, where p and q are the roots of the equation.

Tags

CCSS.HSA-REI.B.4B

Front

What is the standard form of a quadratic equation?

Back

The standard form of a quadratic equation is ax² + bx + c = 0.

Front

How do you find the roots of a quadratic equation by factoring?

Back

To find the roots, factor the quadratic into the form (x - p)(x - q) = 0, then set each factor equal to zero: x - p = 0 and x - q = 0.

Tags

CCSS.HSA-REI.B.4B

Front

Solve by factoring: x² - 9x + 20 = 0

Back

x = 4 and x = 5

Tags

CCSS.HSA-REI.B.4B

Front

Solve by factoring: x² + 15x + 44 = 0

Back

x = -11 and x = -4

Tags

CCSS.HSA-REI.B.4B

Front

Solve by factoring: x² + 2x - 24 = 0

Back

x = -6 and x = 4

Tags

CCSS.HSA-REI.B.4B

Front

Solve by factoring: x² + 3x - 18 = 0

Back

x = 3 and x = -6

Tags

CCSS.HSA-REI.B.4B

Front

Solve by factoring: x² + 7x + 12 = 0

Back

x = -3 and x = -4

Tags

CCSS.HSA-REI.B.4B

Front

What is the zero-product property?

Back

The zero-product property states that if the product of two factors is zero, then at least one of the factors must be zero.

Tags

CCSS.HSA-REI.B.4B