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
kobusy [5.1K]
2 years ago
14

7b^2 - 14b - 56 = 0 Solve by completing the square

Mathematics
1 answer:
Yakvenalex [24]2 years ago
5 0

Answer: <em>7(b-1)^2-63</em>

Step-by-step explanation:

Factor out 7

<em>7(b^2-2b-8)</em>

Add and subtract (-1)^2:

<em>7(b^2-2b-8+(-1)^2-(-1\)^2)</em>

Complete the square:

<em>7((b-1)^2-8-(-1)^2)</em>

<em />

Simplify:

<em>7(b-1)^2-63</em>

You might be interested in
HELP ASAP!! A recipe calls for 2.3 cup of milk. if you make 3 1/2 times the recipe, how much milk do you need?
LiRa [457]
The question is basically asking what 3.5 x 2.3 is. So the answer would be 8.05. If you read carefully it even tells you “times” I. The question. Hope this helps!!
3 0
2 years ago
Please help I will give brainliest if you are correct!
Over [174]

Answer:

About $676.5 billion will be spent at restaurants in 2018 if this trend continues

Step-by-step explanation:

I think if you have to round you round up to 677

5 0
2 years ago
Simplify:0.3(x-2y)+0.5x-y
astraxan [27]

Answer:

0.3[x-2y] + 0.5x - y


Use the distributive property: a(b-c) = ab - ac


0.3x - 0.6y + 0.5x - y


Now, add/subtract all like terms


0.3x + 0.5x - 0.6y - y


0.8x - 1.6y


If you want, we can simplify that down further to:


0.8(x - 2y)



7 0
3 years ago
Read 2 more answers
HELLO PLEASE HELP!! HAVE A GOOD DAY/NIGHT!!
aliina [53]

So, XZ= 7x+1 and PZ= 4x-1. To figure out XP we have to subtract those two.

(7x+1)-(4x-1)

3x-2

3(8)-2

24-2

22

XP=22

6 0
3 years ago
Read 2 more answers
Factor the equation 8y-36
musickatia [10]
4(2y−9) is the correct answer
6 0
3 years ago
Other questions:
  • What’s the percent of change?<br> Original: 25<br> New: 18
    9·1 answer
  • For the school concert band performance student tickets cost eight dollars each and adult tickets cost $12 each the seller is co
    13·1 answer
  • How do you do this question
    5·1 answer
  • She paid 26.35 for something that would usually be 31 dollars. what percent discount did she get
    12·1 answer
  • Triangle ABC is a right triangle. If AC=12 and BC=13 find AB.
    6·2 answers
  • If f(x)=-6x+13 and g(x)=6-4(x-1) which is an equivalent form of f(x)+g(x)​
    13·1 answer
  • If two angles of measure (x + 3)º and (2x – 9)º
    9·1 answer
  • If f(x) = -x2+2x f(6)
    11·1 answer
  • Let N* be the total number of ranchers in Uruguay, and N(t) be the number of ranchers who have adopted an improved pasture techn
    9·1 answer
  • Find the slope and y-intercept
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!