Factoring and Solving Quadratic Equations

The video tutorial explains how to solve quadratic equations by factoring when they are not in standard form. It begins by transforming the equation into standard form by subtracting terms to make one side equal zero. The instructor then uses the 'bottoms up' method to factor the equation, finding numbers that multiply to a specific value and add to another. Finally, the video demonstrates solving the factored equation by setting each factor equal to zero and solving for x.

What is the first step in solving a quadratic equation by factoring?

• Convert the equation to standard form

• Add a constant to both sides

• Divide by the coefficient of x

• Multiply both sides by zero

Tags

CCSS.HSA-REI.B.4B

Why is it necessary to make the equation equal to zero?

• To eliminate the variable

• To simplify the equation

• To apply the quadratic formula

• To use the factoring method

Tags

CCSS.HSA-REI.B.4B

What is the 'bottoms up' method used for?

• Graphing functions

• Solving linear equations

• Factoring quadratic equations

• Simplifying expressions

Which two numbers multiply to -30 and add to 1 in the example?

• 6 and -5

• 3 and -10

• 10 and -3

• 5 and -6

Tags

CCSS.HSA-REI.B.4B

After factoring, what should be done next?

• Add the factors together

• Divide the factors by the coefficient of x

• Multiply the factors

• Set each factor equal to zero

Tags

CCSS.6.EE.B.7

What is the solution for x when solving X + 2 = 0?

• x = 1

• x = 2

• x = -2

• x = 0

Tags

CCSS.6.EE.B.7

How do you solve 3x - 5 = 0 for x?

• x = -3/5

• x = -5/3

• x = 3/5

• x = 5/3

What is the purpose of dividing the factors by the coefficient of x?

• To find the roots of the equation

• To eliminate the constant term

• To balance the equation

• To simplify the equation

Tags

CCSS.HSA-REI.B.4B

What is the final step in solving a quadratic equation by factoring?

• Re-factor the equation

• Check for extraneous solutions

• Verify the solutions

• Graph the equation

Tags

CCSS.HSA-REI.B.4B

What is the result of solving the equation 3x^2 + x - 10 = 0?

• x = -5 and x = 2/3

• x = 2 and x = -5/3

• x = -2 and x = 5/3

• x = 5 and x = -2/3

Tags

CCSS.HSA-REI.B.4B