1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Julli [10]
4 years ago
13

Complete the square for 3x^2-6x=21. leave your answer in the form (____)^2=(____)

Mathematics
2 answers:
jarptica [38.1K]4 years ago
6 0
X^2-2x=7
x^2-2x+1=7+1
(x-1) ^2=8
Mrac [35]4 years ago
3 0

Answer: (x - 1)² = 8

<u>Step-by-step explanation:</u>

3x² - 6x = 21

<u>÷3 </u>  <u> ÷3 </u>  <u> ÷3 </u>

 x² - 2x = 7

x² - 2x + ___ = 7 + ___

     ↓         ↑              ↑

   \frac{-2}{2} = (-1)^{2}

x² - 2x + <u> 1 </u> = 7 + <u> 1 </u>

    (x - 1)²     =  8

You might be interested in
How do you use theorems about parallelograms to solve problems?
Vinil7 [7]
Different parallelograms require different ways of solving so theorems tell you how each parallelogram can be solved
4 0
3 years ago
Ayo what this?????????????? My teacher tripping
Hunter-Best [27]
He/she really tripping but maybe try simplifying them ?
8 0
3 years ago
How do i show my work for 40 divided by 17.00
Eddi Din [679]

Answer:

40/17.00 = 2.35294 ( then round to whatever is required )

Step-by-step explanation:

4 0
3 years ago
Richard cuts a piece of wood for a project. The first cut is shown and can be represented by the equation y = 1/2x + 2. The Seco
Morgarella [4.7K]
Since it is parallel, gradient must be the same so it will be 1/2
y=1/2x+c
-7=1/2(0)+c
c=-7
equation is y=1/2x-7
5 0
3 years ago
Read 2 more answers
Linear or nonlinear​
Wittaler [7]

Answer:

Linear

Step-by-step explanation:

It increases by a steady rate, so it is linear.

5 0
3 years ago
Other questions:
  • What is the solution for the y=x+1 and x=5
    8·2 answers
  • What is the radian measure of an angle containing 60 degrees?
    15·1 answer
  • Round to the nearest hundred.428
    6·1 answer
  • What is the solution to the system of equations shown below 2x-y+z=4 4x-2y+2z=8 -x+3y-z+=5
    8·1 answer
  • How to use properties to find the sum or product for 8×51
    8·1 answer
  • If the parent function f(x)= x is modified to g(x)= 2x^2+ 1, which statement is true about g(x)?
    14·1 answer
  • ? divided by 1/3= 9/10
    5·1 answer
  • The “box” part of a box-and-whisker plot represents __________.
    15·1 answer
  • In hopes of encouraging healthier snacks at school, Pete brought in a tray of carrot sticks and apple slices to share. The tray
    6·1 answer
  • NEED HELP ASAP!!!!
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!