Solve by factoring when a is greater than one

Solve by factoring when a is greater than one

Assessment

Interactive Video

Mathematics

11th Grade - University

Hard

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The video tutorial demonstrates how to solve a quadratic equation using the AC method. It begins by explaining the importance of the absolute value of 'A' and why traditional factoring techniques may not apply. The instructor sets up the problem by rewriting the equation and then applies the AC method to find factors that multiply to a specific value and add to another. The tutorial continues with factoring by grouping, where common terms are identified and factored out. Finally, the zero product property is applied to solve the equation, resulting in the solutions for X. The tutorial concludes with a summary of the process and the solutions obtained.

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7 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the significance of the absolute value of A in the AC method?

It is used to find the greatest common factor.

It determines the sign of the solution.

It helps decide whether traditional factoring techniques can be used.

It indicates the number of solutions.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When adjusting the diamond method, what do you multiply to find the top number?

A and the absolute value of B

A and C

A and B

B and C

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which pair of numbers multiplies to 45 and adds to 14?

9 and 5

6 and 9

7 and 7

10 and 4

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of rewriting the middle term in the quadratic equation?

To simplify the equation

To prepare for factoring by grouping

To eliminate the constant term

To change the equation to a linear form

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In factoring by grouping, what is the first step?

Combine all terms

Factor out the greatest common factor

Group the terms into pairs

Solve for X directly

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the zero product property used for in solving quadratics?

To find the maximum value of the function

To determine the axis of symmetry

To solve for the roots of the equation

To calculate the vertex

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the solutions to the quadratic equation in the example?

X = 3 and X = 5

X = 3 and X = 5/3

X = -3 and X = 5

X = -3 and X = 5/3