Solve the Quadratic Equation for X: ax + a² = (a + x)² + 3

Look at the equation below and express X in terms of a, given that a<3.

ax+a2=(a+x)2+3 ax+a^2=(a+x)^2+3

❤️ Continue Your Math Journey!

We have hundreds of course questions with personalized recommendations + Account 100% premium

Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:00 Express X in terms of A
00:04 Expand brackets properly according to shortened multiplication formulas
00:15 Arrange the equation so that one side equals 0
00:23 Arrange the equation
00:26 Look at the coefficients (every number is actually multiplied by 1)
00:32 Use the quadratic formula to find possible solutions
00:43 Substitute appropriate values and solve to find the solutions
01:06 A is less than 3 according to the given data
01:09 Therefore, A squared is definitely less than 9
01:13 Thus, the above root expression is not logical - less than 0
01:19 Therefore, there is no solution

Step-by-step written solution

Follow each step carefully to understand the complete solution
1

Understand the problem

Look at the equation below and express X in terms of a, given that a<3.

ax+a2=(a+x)2+3 ax+a^2=(a+x)^2+3

2

Step-by-step solution

To find x x in terms of a a from the equation ax+a2=(a+x)2+3 ax + a^2 = (a + x)^2 + 3 , follow these steps:

  • Step 1: Expand the right-hand side:
    (a+x)2=a2+2ax+x2(a + x)^2 = a^2 + 2ax + x^2
  • Step 2: Substitute and simplify the equation:
    ax+a2=a2+2ax+x2+3 ax + a^2 = a^2 + 2ax + x^2 + 3
  • Step 3: Rearrange the terms:
    ax+a2a2=2ax+x2+3 ax + a^2 - a^2 = 2ax + x^2 + 3
    ax=2ax+x2+3 ax = 2ax + x^2 + 3
  • Step 4: Move all terms to one side of the equation to form a quadratic:
    0=x2+ax+3 0 = x^2 + ax + 3
  • Step 5: Analyze the quadratic equation x2+ax+3=0 x^2 + ax + 3 = 0 :
    Calculate the discriminant: Δ=a2413=a212\Delta = a^2 - 4 \cdot 1 \cdot 3 = a^2 - 12.
  • Step 6: Consider the condition for real solutions (Δ0\Delta \geq 0):
    Since a212<0 a^2 - 12 < 0 for a<3 a < 3 , the discriminant is negative for values of a<3 a < 3. This means the quadratic equation has no real solutions.

Therefore, for the given condition a<3 a < 3 , there is no solution for x x .

3

Final Answer

No solution

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

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

🌟 Unlock Your Math Potential

Get unlimited access to all 18 Solving Quadratic Equations questions, detailed video solutions, and personalized progress tracking.

📹

Unlimited Video Solutions

Step-by-step explanations for every problem

📊

Progress Analytics

Track your mastery across all topics

🚫

Ad-Free Learning

Focus on math without distractions

No credit card required • Cancel anytime

More Questions

Click on any question to see the complete solution with step-by-step explanations