Solve the Quadratic Equation: 3x² - 9x + 12 = 0

Question

Solve the equation

3x29x+12=0 3x^2-9x+12=0

Video Solution

Solution Steps

00:00 Find X
00:03 Pay attention to the coefficients
00:10 Use the root formula
00:23 Substitute appropriate values according to the given data and solve for X
00:43 Calculate the products and the square
00:59 There is no such thing as a root of a negative number, therefore there is no solution
01:04 And this is the solution to the question

Step-by-Step Solution

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

  • Step 1: Identify the coefficients a=3 a = 3 , b=9 b = -9 , c=12 c = 12 .
  • Step 2: Compute the discriminant Δ=b24ac \Delta = b^2 - 4ac .
  • Step 3: Determine if real solutions exist based on the discriminant.
  • Step 4: Solve using the Quadratic Formula if applicable.

Now, let's work through each step:

Step 2: Calculate the discriminant:

Δ=(9)24×3×12 \Delta = (-9)^2 - 4 \times 3 \times 12

Δ=81144=63 \Delta = 81 - 144 = -63

Step 3: Since the discriminant Δ \Delta is negative (63-63), this means there are no real solutions for the quadratic equation. A negative discriminant indicates that the solutions are complex (i.e., non-real), so the equation has no real solution.

Therefore, the solution to the problem is No solution.

Answer

No solution