All categories

4 years ago

Factor by grouping ab + 7a + 4b + 28

Mathematics

2 answers:

vodomira [7]4 years ago

8 0

Answer:

(b + 7)(a + 4)

Step-by-step explanation:

ab + 7a + 4b + 28

separate the polynomial into 2 sections

(ab + 7a) (+ 4b + 28)

simplify each expression

a(b + 7)

4(b + 7)

you see that you have (b + 7) in both expressions. take that aside.

(b + 7)

you are left with a and positive 4. put these two together

(a + 4)

now put the expressions together

(b + 7)(a + 4)

kap26 [50]4 years ago

5 0

Answer:

$\boxed{ \bold{ \huge{ \boxed{ \sf{(b + 7)(a + 4)}}}}}$

Step-by-step explanation:

$\sf{ab + 7a + 4b + 28}$

Take a common

$\dashrightarrow{ \sf{a(b + 7) + 4b + 28}}$

Take 4 common

$\dashrightarrow{ \sf{a(b + 7) + 4(b + 7)}}$

Take ( b + 7 ) common

$\dashrightarrow{ \sf{(b + 7)(a + 4)}}$

Hope I helped!

Best regards! :D

You might be interested in

Daniel has a coupon for $1.44 off

Art [367]

Answer:

Daniel will save $1.18

Step-by-step explanation:

First, find the cost of the name-brand flour with the coupon:

Subtract 1.44 from the original price of 9.12:

9.12 - 1.44

= 7.68

So, the price of the name-brand flour with the coupon is $7.68

Now, find how much he will save by finding the difference between this price and the price of the store brand flour:

8.86 - 7.68

= 1.18

So, Daniel will save $1.18

3 0

3 years ago

Help me please. I don’t understand this math. My math teacher is mean. :(((((

Verdich [7]

Answer:

The height of the given rectangular prism is 5cm.

Step-by-step explanation:

Given that the volume of the rectangular prism is $5cm^3$

And length is $\frac{3}{4}$ and width is $1\frac{1}{3}$

That is V=5cm^3[/tex] , $l=\frac{3}{4}cm$ and $w=1\frac{1}{3}cm$

We have the volume of the rectangular prism V=lwh cubic centimeter

$V=lwhcm^3$

Substituting the values in above formula

$5=\frac{3}{4}\times 1\frac{1}{3}\times h$

$5=\frac{3}{4}\times \frac{4}{3}\times h$

$5=1\times h$

$5=h$

Rewritting as below

$h=5cm$

Therefore the height is 5cm

5 0

4 years ago

Read 2 more answers

Please help me!!!!!!

True [87]

Answer:

y = 28, 16 , 4 , -8 , -20

Hope this helps.

3 0

3 years ago

If there are 6 people, and each person has 2 coins, there are __ times as many coins as people.

never [62]

Answer:

Step-by-step explanation:

6x2=12 12/6=2

3 0

3 years ago

To find the maximum amount of water it takes to fill a rectangular fish tank, you need to know the

gizmo_the_mogwai [7]

Answer:

answer is a

Step-by-step explanation:

the volume is everything on the inside of the tank

surface area would only be the amount of water it take of cover one side

area would just be the size of the glass on bottom

the perimeter would just be the length of all four edges of each side of the fish tank

6 0

3 years ago

Read 2 more answers