What is the most method to solve the quadratic equation?

Identify the Most Appropriate Method to Solve a Quadratic Equation

• Try Factoring first. If the quadratic factors easily, this method is very quick.
• Try the Square Root Property next. If the equation fits the form ax2=k or a(x−h)2=k, it can easily be solved by using the Square Root Property.
• Use the Quadratic Formula.

How do you solve x2 9x 20 0?

First, we need to factorise the equation on the left hand side, this can be done by finding two numbers that add together to make the ‘b’ coefficient (-9) and multiply to make the ‘c’ coefficient (20). This will give -5 and -4. Therefore, (x-5)(x-4)=0.

What method can we use to solve a quadratic equation that can be written in the form?

factoring
You can use any method you want to solve the quadratic equation: factoring, completing the square or quadratic formula.

What method can we use to solve a quadratic equation that can be written in the form x2 R?

You can use any method you want to solve the quadratic equation: factoring, completing the square or quadratic formula.

Which of the following are the roots of the quadratic equation x2 Square )- 9x 20 *?

∴ x = 4 and 5 are the roots of the given quadratic equation.

Which of the following are the roots of the quadratic equation x² 9x 20/0 by Factorisation?

Therefore, x = 4 or x = 5. Hence, option (b) is correct. This discussion on Which of the following are the roots of the quadratic equation, x2 – 9x + 20 = 0 by factorisation? a)3,4b)4, 5c)5, 6d)6, 7Correct answer is option ‘B’.

How to solve quadratic equations?

There are so far 8 common methods to solve quadratic equations, They are: graphing, completing the squares, quadratic formula, factoring FOIL, The Diagonal Sum Method, the Bluma Method, the popular factoring AC Method, and the new Transforming Method. – When the quadratic equation can’t be factored, the quadratic formula is the obvious choice.

What are the roots of the quadratic equation?

So, 4 and \\ [-5\\] are the roots of the given quadratic equation. Is there an error in this question or solution?

How do you write 3×2 -5x – 8 = 0?

The variable a is the coefficient of the x 2 term, b is the coefficient of the x term, and c is the constant. For the equation 3x 2 -5x – 8 = 0, a = 3, b = -5, and c = -8. Write this down. Substitute the values of a, b, and c into the equation.

How to solve (x−5)(x−4) = 0 true?

Set the first factor equal to 0 0. Add 5 5 to both sides of the equation. Set the next factor equal to 0 0 and solve. Tap for more steps… Set the next factor equal to 0 0. Add 4 4 to both sides of the equation. The final solution is all the values that make (x−5)(x−4) = 0 ( x – 5) ( x – 4) = 0 true.