Understanding Zero Product Property and Solving Equations

The video tutorial explains how to solve equations using the zero product property. It begins with an introduction to the equation 2x - 1 times x + 4 equals zero and encourages viewers to find the solutions. The key concept of the zero product property is explained, emphasizing that the product of two numbers is zero if at least one of them is zero. The tutorial then demonstrates solving the equation step-by-step, resulting in two solutions: x = 1.5 and x = -4. Finally, another example involving a function is provided, showing how to find the zeros of f(x) = (x - 5)(5x + 2).

What is the equation discussed at the beginning of the video?

• x^2 - 5x + 6 = 0

• 2x - 1 times x + 4 = 0

• x^2 + 4x + 4 = 0

• 3x - 2 times x + 5 = 0

Tags

CCSS.HSA-REI.B.4B

Why must at least one factor be zero for their product to be zero?

• Because zero is an even number.

• Because zero is the smallest number.

• Because zero is the only number that can be multiplied to get zero.

• Because zero is a prime number.

Tags

CCSS.HSA-REI.B.4B

What is the zero product property?

• A property that states the difference of two numbers is zero if both are zero.

• A property that states the quotient of two numbers is zero if both are zero.

• A property that states the product of two numbers is zero if at least one is zero.

• A property that states the sum of two numbers is zero if both are zero.

Tags

CCSS.6.EE.B.7

What are the solutions to the equation 2x - 1 = 0 or x + 4 = 0?

• x = -1/2 and x = 4

• x = 1 and x = -4

• x = 2 and x = 4

• x = 1/2 and x = -4

Tags

CCSS.7.EE.B.4A

How do you solve the equation 2x - 1 = 0?

• Subtract 1 from both sides and multiply by 2.

• Multiply both sides by 2 and add 1.

• Add 1 to both sides and divide by 2.

• Divide both sides by 2 and subtract 1.

Tags

CCSS.HSA.REI.A.2

What happens when x = 1/2 is substituted back into the equation?

• Neither expression becomes zero.

• Both expressions become zero.

• The second expression becomes zero.

• The first expression becomes zero.

Tags

CCSS.6.EE.A.2C

What is the result when x = -4 is substituted back into the equation?

• The first expression becomes zero.

• The second expression becomes zero.

• Neither expression becomes zero.

• Both expressions become zero.

Tags

CCSS.HSF-IF.C.7C

What is the purpose of finding zeros of a function?

• To find the maximum value of the function.

• To find the x-values that make the function equal to zero.

• To find the y-values that make the function equal to zero.

• To find the minimum value of the function.

Tags

CCSS.HSF-IF.C.7C

What are the zeros of the function f(x) = x - 5 times 5x + 2?

• x = 5 and x = -2/5

• x = -5 and x = 2/5

• x = 5 and x = 2/5

• x = -5 and x = -2/5

Tags

CCSS.HSF.IF.A.2

What happens when you input x = 5 into the function f(x) = x - 5 times 5x + 2?

• Both expressions become zero.

• The second expression becomes zero.

• Neither expression becomes zero.

• The first expression becomes zero.

Tags

CCSS.HSF.IF.A.2