x2 + bx = c.
![subject](/tpl/images/cats/mat.png)
Mathematics, 07.02.2021 09:00 plumv2145
Solve x2 - 8x - 9 = 0.
Rewrite the equation so that it is of the form
x2 + bx = c.
-8 and 9
Add _ to each side x2 – 8x = 9 to complete the square.
16
Now that you have x² - 8x + 16 = 9 + 16, apply the square root property to the equation.
(x - 4)^2 = 25
Choose the solutions to the quadratic equation
x2 – 8x – 9 = 0.
-1 and 9
![ansver](/tpl/images/cats/User.png)
Answers: 3
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Other questions on the subject: Mathematics
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 13:50, miacervenka
At a sand and gravel plant, sand is falling off a conveyor and onto a conical pile at a rate of 16 cubic feet per minute. the diameter of the base of the cone is approximately three times the altitude. at what rate is the height of the pile changing when the pile is 12 feet high? (hint: the formula for the volume of a cone is v = 1 3 πr2h.)
Answers: 3
![image](/tpl/images/cats/mat.png)
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 18:50, bradenjesmt1028
Need 50 will mark brainliest answer. find the lengths of all the sides and the measures of the angles.
Answers: 1
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 22:30, Backfire3607
Using the figure below, select the two pairs of alternate interior angles. a: point 1 and point 4 b : point 2 and point 3 c: point 6 and point 6d: point 5 and point 7
Answers: 2
You know the right answer?
Solve x2 - 8x - 9 = 0.
Rewrite the equation so that it is of the form
x2 + bx = c.
x2 + bx = c.
Questions in other subjects:
![Konu](/tpl/images/cats/en.png)
English, 17.12.2020 20:20
![Konu](/tpl/images/cats/mat.png)
Mathematics, 17.12.2020 20:20
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/biologiya.png)
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/en.png)
English, 17.12.2020 20:20
![Konu](/tpl/images/cats/mat.png)
Mathematics, 17.12.2020 20:20
![Konu](/tpl/images/cats/istoriya.png)
History, 17.12.2020 20:20
![Konu](/tpl/images/cats/mat.png)
Mathematics, 17.12.2020 20:20