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
Doss [256]
3 years ago
6

How to factorise by grouping for 7a, d and h

Mathematics
2 answers:
asambeis [7]3 years ago
7 0

Step-by-step explanation:

7a

x2 + 4x + ax + 4a

x2 + ax + 4x + 4a

x (x + a) + 4 (x + a)

:(x + 4)(x+a)

7d

x2+2x-ax-2a

x2-ax+2x-2a

x (x-a)+2 (x-a)

:(x+2)(x-a)

7h

x2-2bx-5x+10b

x2-5x-2bx+10b

x (x-5)-2b(x-5)

:(x-2b)(x-5)

Maksim231197 [3]3 years ago
5 0

Answer:

You have to take out the common terms :

Question A,

{x}^{2}  + 4x + ax + 4a

= x(x + 4) + a(x + 4)

= (x + a)(x + 4)

Question D,

{x}^{2}  + 2x - ax - 2a

= x(x  +  2) - a(x + 2)

= (x - a)(x + 2)

Question H,

{x}^{2}  - 2bx - 5x + 10b

= x(x - 2b) - 5(x - 2b)

= (x - 5)(x - 2b)

You might be interested in
Find the unlabeled side length
White raven [17]

Answer:

hope it helps you.......

8 0
2 years ago
Read 2 more answers
What’s the answer for 7+25•4
kotykmax [81]
Use Order of Operations!! Remember PEMDAS!
P: Parentheses first
E: Exponents (ie Powers and Square Roots, etc.)
MD: Multiplication and Division (left-to-right)
AS: Addition and Subtraction (left-to-right)

7+25•4 (multiply 25 by 4 first)
7+100 (then add 7 to 100)
107

So your final answer would be 107

Hope this helped and I hope you have an awesome day!! :D
3 0
3 years ago
Read 2 more answers
4times 1 1/5 as a product of a mixed number
natka813 [3]
The answer is 24/5 or 4 4/5 but if it is 11 on 5, the answer would be 44/5 or 8 4/5
7 0
3 years ago
Number 2 is the one that needs to be done... number 1 is the example, plz help tho
Annette [7]
2) 

The area of the whole polygon can be found by adding the area of the top square and the bottom rectangle.

Area of square = 1² = 1
Area of rectangle = 3 × 4 = 12

Area of whole polygon = 1 + 12 = 13 inches²

Hope this helps :)
7 0
3 years ago
HELP ME PLEASE !!!
Anuta_ua [19.1K]

Answer: The Smith family price for the meal is  $36.39

Step-by-step explanation:

The Smith family went out to dinner. • The price of the meal was $29.85.

The sales tax was 6% of the price of the meal.

LEts find sales tax amount

sales tax amount = price of meal * sales tax 6%(0.06)

= 29.85 * 0.06 = 1.791

sales tax amount = 1.791

Price of the mean with sales tax = 29.85 + 1.791= 31.641

The tip was 15% of the meal and the sales tax

now we find out tip amount for 31.641

15 % is 15/ 100 = 0.15

Tip amount = 31.641 * 0.15 = 4.74615

Now we add the top amount with 31.641

31.641+ 4.74615=36.38715

the Smith family price for the meal = $36.39

3 0
2 years ago
Other questions:
  • We are given a table that displays the current value of search engine giant Google. Using the table below, determine the closing
    14·2 answers
  • Melissa averages a rate of 1.5 steps per second while walking. How many steps will she take in an hour if this rate continues?
    13·1 answer
  • The house Trevor's family lives in has 6 people (including Trevor) and 3 bathrooms. In the past month, each person showered for
    6·1 answer
  • What is the difference between public relation and costomer relation?
    7·1 answer
  • If u= <4,5> and v= <0,-1>, find 2v+5u
    7·2 answers
  • 10.) A meat shop sold 4 1/6 pounds of sausage and 4 times as much burger as sausages. How
    15·1 answer
  • Clare has a recipe for yellow cake. She uses 913 cups of flour to make 4 cakes. Noah will follow the same recipe. He will make c
    10·1 answer
  • Blank one
    11·1 answer
  • The price of a gallon of milk increased from $5.50 to $7.50. Describe the price increase as a percent.​
    8·1 answer
  • F(x) = 3x^2 + 10x -25 g(x) = 9x^2 -25 Find (f/g)(x)
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!