Identify Components in 5-6x²+12x=0: Coefficient Analysis

Quadratic Coefficients with Standard Form

a = coefficient of x²

b = coefficient of x

c = coefficient of the independent number


56x2+12x=0 5-6x^2+12x=0

What are the components of the equation?

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:00 These are the equation components
00:03 Let's write the quadratic equation format
00:10 The coefficient of X squared is A
00:14 The coefficient of X is B
00:19 And the constant term is C
00:23 And this is the solution to the question

Step-by-step written solution

Follow each step carefully to understand the complete solution
1

Understand the problem

a = coefficient of x²

b = coefficient of x

c = coefficient of the independent number


56x2+12x=0 5-6x^2+12x=0

What are the components of the equation?

2

Step-by-step solution

Let's solve this problem step-by-step by identifying the coefficients of the quadratic equation:

First, examine the given equation:

56x2+12x=05 - 6x^2 + 12x = 0

To make it easier to identify the coefficients, we rewrite the equation in the standard quadratic form:

6x2+12x+5=0-6x^2 + 12x + 5 = 0

In this expression, we can now directly identify the coefficients:

  • The coefficient of x2 x^2 (quadratic term) is a=6 a = -6 .
  • The coefficient of x x (linear term) is b=12 b = 12 .
  • The constant term (independent number) is c=5 c = 5 .

Thus, the components of the quadratic equation are:

a=6 a = -6 , b=12 b = 12 , c=5 c = 5

By comparing these values to the multiple-choice options, we can determine that the correct choice is:

Choice 4: a=6 a = -6 , b=12 b = 12 , c=5 c = 5

Therefore, the final solution is:

a=6 a = -6 , b=12 b = 12 , c=5 c = 5 .

3

Final Answer

a=6 a=-6 b=12 b=12 c=5 c=5

Key Points to Remember

Essential concepts to master this topic
  • Standard Form: Rearrange to ax2+bx+c=0 ax^2 + bx + c = 0 format
  • Technique: Rewrite 56x2+12x=0 5 - 6x^2 + 12x = 0 as 6x2+12x+5=0 -6x^2 + 12x + 5 = 0
  • Check: Verify a is coefficient of x2 x^2 , b is coefficient of x x , c is constant ✓

Common Mistakes

Avoid these frequent errors
  • Reading coefficients from the given equation without rearranging
    Don't identify coefficients directly from 5 - 6x² + 12x = 0 as a=5, b=-6, c=12! This mixes up the order and gives wrong coefficient values. Always rearrange to standard form ax² + bx + c = 0 first, then identify a, b, and c.

Practice Quiz

Test your knowledge with interactive questions

a = Coefficient of x²

b = Coefficient of x

c = Coefficient of the independent number


what is the value of \( a \) in the equation

\( y=3x-10+5x^2 \)

FAQ

Everything you need to know about this question

Why do I need to rearrange the equation first?

+

The standard form ax2+bx+c=0 ax^2 + bx + c = 0 makes it easy to identify coefficients in order. Without rearranging, you might confuse which number goes with which term!

What if the x² term comes last in the equation?

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No problem! Just rearrange the terms so the x2 x^2 term comes first, then the x x term, then the constant. The coefficients stay the same, just in the right order.

How do I handle negative signs in front of terms?

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The negative sign belongs to the coefficient! In 6x2 -6x^2 , the coefficient is a=6 a = -6 , not positive 6.

What if there's no constant term visible?

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If you don't see a number by itself, then c=0 c = 0 . For example, in 3x2+5x=0 3x^2 + 5x = 0 , we have c=0 c = 0 .

Can the coefficient 'a' be negative?

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Yes! In our example, a=6 a = -6 is negative. This just means the parabola opens downward instead of upward.

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