Find the Coefficient of x² in y=3x-10+5x²: Identifying the Leading Term

a = Coefficient of x²

b = Coefficient of x

c = Coefficient of the independent number


what is the value of a a in the equation

y=3x10+5x2 y=3x-10+5x^2

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:00 Find coefficient A
00:03 We'll use the quadratic equation formula
00:09 Let's arrange the equation to fit the formula
00:14 We can see that coefficient A is for the X squared term
00:27 Let's compare the formula to our equation and find the coefficients:
00:41 And this is the solution to the question

Step-by-step written solution

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1

Understand the problem

a = Coefficient of x²

b = Coefficient of x

c = Coefficient of the independent number


what is the value of a a in the equation

y=3x10+5x2 y=3x-10+5x^2

2

Step-by-step solution

To solve this problem, we'll follow these steps:

  • Step 1: Rewrite the given equation in standard quadratic form if necessary.
  • Step 2: Identify the term with x2 x^2 in the equation.
  • Step 3: Extract the coefficient of x2 x^2 as a a .

Now, let's work through each step:
Step 1: The provided equation is y=3x10+5x2 y = 3x - 10 + 5x^2 . Although it's not initially in standard form, observation shows that the x2 x^2 term is clearly present.
Step 2: Locate the x2 x^2 term: in our equation, this term is 5x2 5x^2 .
Step 3: The coefficient of x2 x^2 is 5 5 . Hence, a=5 a = 5 .

Therefore, the coefficient of x2 x^2 , or a a , is a=5 a = 5 .

3

Final Answer

a=5 a=5

Practice Quiz

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Solve the following equation:

\( 2x^2-10x-12=0 \)

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