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x2-11x+28=0: Conquer Any Quadratic Equation

Hi Readers! Are you staring down a quadratic equation like x2-11x+28=0 and wondering how to solve it like a pro? Fear not, aspiring math wizards! The purpose of this blog is to arm you with the key strategies for solving this equation and any quadratic equation.

Conquering the Beast: Multiple Solution Paths

What is a Quadratic Equation?

A quadratic equation x2-11x+28=0 is a polynomial equation of the form ax²+bx+c=0, where a, b, and c are constants, and x is the variable. In the equation x²-11x+28=0, we have a = 1, b = -11, and c = 28. The goal is to find the values of x that satisfy the equation.

Step 1: x2-11x+28=0 Factorizacion

To solve the quadratic equation x²-11x+28=0, the first step is to factor the equation. We need to find two numbers that multiply by 28 and add up to -11 (the coefficient of x). In this case, the numbers are -4 and -7, as (-4)(-7) = 28 and -4 + (-7) = -11. Therefore, we can rewrite the equation as (x – 4)(x – 7) = 0.

  • Factoring of the equation x2-11x+28=0 involves rewriting the expression as a product of two linear expressions.
  • If you can find two numbers that add up to -11 (the coefficient of our x term) and multiply to 28 (our constant term), you’ve hit the jackpot!
  • In this case, for the equation x2-11x+28=0, those magic numbers are -7 and -4.
  • Factoring of the equation  x2-11x+28=0 gives us (x-7)(x-4) = 0.

Step 2: Setting Each Factor to Zero For the Quadratic x2 11x 28-0

Next, we set each factor to zero to find the roots of the equation x2-11x 28=0. So, we have x—4 = 0 and x—7 = 0. Solving these equations gives us x = 4 and x = 7. Since the product equals zero, one or both factors must equal zero. 

Step 3: Checking the Solutions: x2 11x + 28 = 0 Quadratic Formula

To ensure that our solutions are correct, we substitute x = 4 and x = 7 back into the original equation x²-11x+28=0. If both values satisfy the x2 11x + 28 = 0 quadratic formula, then we have found the correct roots.

2. The Quadratic Formula Called Sridharacharya Formula: A Universal Weapon

  • This formula works for any quadratic equation and is like a math Swiss army knife.
  •  The formula is x = (-b ± √(b² – 4ac)) / 2a, where a, b, and c are the coefficients of your quadratic equation.
  • In our case, a = 1, b = -11, and c = 28. Plugging these values in, we get x = (11 ± √((-11)² – 4 * 1 * 28)) / 2 * 1.
  • After some simplification, you’ll end up with the same solutions: x = 7 and x = 4.

3. x^2-11x+28=0 complete the square: A Strategic Maneuver

  • This method involves manipulating the x2 11x+28=0 quadratic equation to create a perfect square trinomial.
  • It can be a bit more involved but can be useful for equations that don’t factor easily.
  • We won’t delve into the steps here, but you can find detailed explanations online.

 Solving The Equation x2-11x+28=0

x2-11x+28=0

Pro Tip: When to Choose Which Weapon?

  • Factoring is the fastest method if you can readily find the factors.
  • The quadratic formula is a reliable fallback for any quadratic equation.
  • Completing the square might be useful for equations that resist factoring but can take more practice.

Embrace the Challenge, Conquer Any Quadratic!

Mastering these methods and working out a number of different equations will have you quadratic-solving like a pro in no time. Remember, math is an adventure of exploration and discovery. So, embrace the challenge, and don’t feel afraid to ask for help if needed. Now you have the tools to conquer not just x²-11x+28=0, but any quadratic equation that stands in your way!

Read the latest Academics blog here. 

David Scott
David Scott
Digital Marketing Specialist .
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