8 Slides • 7 Questions

Quadratic Formula

The quadratic formula is a powerful tool for finding the roots of any quadratic equation.

2

Determinants (D)

3

Quadratic formula canbe used to solve quadratic equations especially if the given quadraticequation is not factorable.

4

Multiple Choice

Identify a, b and c in the quadratic equation: $2x^2-3x-5=0$

1

a = 2 , b = 3, c = -5

2

a = 2, b = -3, c = 5

3

a = 2, b = -3, c = -5

4

a = -2, b = 3, c = 5

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Poll

Find the rootsof the quadratic equation $x^2\ -7x\ =-10$ using the quadratic formula.

x = 5 and 2

x = $\pm5$

x = $\pm3$

x = -5 and -2

6

Answer:

7

Multiple Choice

Solve using the Quadratic Formula: $2x^2+7x-15=0$

1

$x=\frac{3}{2}\ and\ \ 5$

2

$x\ =\frac{3}{2}\ and\ -5$

8

Solution:

9

Multiple Choice

Solve: $3x^2-5\ =\ 5x\ +1+x^2$

1

$x\ =\frac{5\pm\sqrt[]{73}}{4}$

2

$x\ =\frac{5+\sqrt[]{73}}{4}$

3

$x\ =\frac{5-\sqrt[]{73}}{4}$

4

$x\ =\frac{7\pm\sqrt[]{53}}{4}$

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Solution:

11

Multiple Choice

$x^2\ +\frac{3}{2}x+\frac{1}{3}=0$

1

$\frac{9\pm\sqrt[]{33}}{12}$

2

$\frac{-9\pm\sqrt[]{33}}{12}$

12

Solution:

13

Multiple Choice

$\left(x+5\right)\left(x-2\right)=\ x-5$

1

$-1\ \pm\sqrt[]{6}$

2

$1\pm\sqrt[]{6}$

14

Solution

15

Poll

What is your favorite way of solving quadratic equations so far?!

Factoring

Square Root Property

Completing the Square

Quadratic Formula

The quadratic formula is a powerful tool for finding the roots of any quadratic equation.

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Quadratic Formula

Quadratic Formula

​Determinants (D)

​Answer:

​Solution:

​Solution:

​Solution:

​Solution

Quadratic Formula

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Popular Resources on Wayground

Discover more resources for Mathematics

Determinants (D)

Answer:

Solution:

Solution:

Solution:

Solution