Gr 11 Math Ch 2: Completing the Square

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What is the main purpose of completing the square method in solving quadratic equations?

To rewrite the equation in the form of a perfect square trinomial (correct)

To find the axis of symmetry

To find the vertex of the parabola

To graph the quadratic function

In the method of completing the square, what is the purpose of taking half the coefficient of the x term and squaring it?

To balance the equation

To add and subtract the value to the equation (correct)

To find the vertex of the parabola

To eliminate the x term

What is the formula for solving quadratic equations, given in the form ax^2 + bx + c = 0?

x = (-b ± √(b^2 - 4ac)) / a

x = (-b - √(b^2 - 4ac)) / 2a

x = (-b ± √(b^2 + 4ac)) / 2a

x = (-b ± √(b^2 - 4ac)) / 2a (correct)

What is the first step in solving a quadratic equation using the completing the square method?

Write the equation in the standard form ax^2 + bx + c = 0 Signup and view all the answers

What is the advantage of using the quadratic formula to solve quadratic equations?

It provides a quick and easy way to solve quadratic equations Signup and view all the answers

What is the result of completing the square of a quadratic equation?

A quadratic equation in the form of a perfect square trinomial Signup and view all the answers

When solving a quadratic equation using the completing the square method, why do we add and subtract half the coefficient of the x term?

To balance the equation and keep it equivalent Signup and view all the answers

What is the purpose of dividing the entire equation by a when solving a quadratic equation with a non-unitary leading coefficient?

To make the coefficient of the x^2 term equal to 1 Signup and view all the answers

What is the result of completing the square of a quadratic equation in the form ax^2 + bx + c = 0?

A perfect square trinomial Signup and view all the answers

Why is the quadratic formula useful for solving quadratic equations?

It provides an exact solution for all quadratic equations Signup and view all the answers

When solving a quadratic equation using the completing the square method, what is the purpose of writing the left-hand side as a perfect square trinomial?

To factor the equation and solve for x Signup and view all the answers

What is the final step in solving a quadratic equation using the completing the square method?

Solving for x by taking square roots Signup and view all the answers

What is the significance of the coefficient of the x^2 term being equal to 1 in the completing the square method?

It enables the rewriting of the equation into a perfect square trinomial. Signup and view all the answers

What is the underlying principle behind the addition and subtraction of half the coefficient of the x term in the completing the square method?

Balancing the equation to keep it equivalent. Signup and view all the answers

Why is the quadratic formula useful for solving quadratic equations with non-unitary leading coefficients?

It can be used to solve equations that cannot be factored. Signup and view all the answers

What is the relationship between the quadratic formula and the completing the square method?

The quadratic formula is derived from the completing the square method. Signup and view all the answers

What is the purpose of writing the left-hand side of the equation as a perfect square trinomial in the completing the square method?

To apply the square root property to solve for x. Signup and view all the answers

What is the main advantage of using the completing the square method over the quadratic formula?

It helps to visualize the solution graphically. Signup and view all the answers

Gr 11 Math Ch 2: Completing the Square

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