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andreyandreev [35.5K]
2 years ago
14

PLEASE HELP!! You need to factor by grouping. Please explain the steps!

Mathematics
1 answer:
inysia [295]2 years ago
5 0

Answer:

3(k-4)(7k^2+5)

Step-by-step explanation:

1) Factor out GCF

3(7k^3-28k^2+5k-20)

2)Split into two

3) Factor

3*7k^2(k-4)+5(k-4)

3(k-4)(7k^2+5)

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I though originally the answer was 1/4x+4 but tgats not it please help​
laila [671]

Answer:

what is that

Step-by-step explanation:

me cant see

6 0
3 years ago
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What is another solution of the equation x+7=y
kirza4 [7]

Here are some solutions: (there are actually an infinite amount of them)

x = 0 ,  y = 7

x = 1  ,  y = 8

x = 2 ,  y = 9

x = 3 ,  y = 10

x = 4 ,  y = 11

x = 42 ,  y = 49

x = pi ,  y = pi + 7

8 0
3 years ago
How to show steps of distributive property with 8 * 34
Elza [17]

  8 * 34

= 8 * (30 + 4)

= 8 * 30   +   8 * 4

=  240     +     32

=            272

4 0
2 years ago
Write a two column proof. If ZY=3XY, then ZX=4XY
Blababa [14]

Answer:

As you have written

Z Y  = 3 X Y,

It means X, Y, Z are collinear points i.e they lie in the same line or line segment.

Locating points X, Y,Z  on the line

Two possibilities are possible

1. First Z, then X and then Y on the line or line segment

→ Z X + Y X= Z Y

But Z Y = 3 X Y [ Given]

→  Z X + Y X = 3 X Y

→  Z X = 3 X Y -  Y X

→  Z X = 2 X Y ⇒ which is not the result.

2. 2nd Possibility

First Z, then Y and then X on the line or line segment

→ Z X  =  Z Y + Y X

→ Z X= 3 X Y + Y X  [Z Y=3 X Y→(given)]

→ Z X= 4 X Y , Which is the result.


5 0
3 years ago
If f(x) = 8x2 + 4x - 12. Find f(2)<br> f(2)=
posledela

Answer:

f(2) = 28

Step-by-step explanation:

\rm f(x) = 8 {x}^{2}  + 4x - 12

\rm Evaluate \:  8 x^2 + 4 x - 12 \:  where  \: x = 2: \\  \\  \rm \implies f(2) = 8 \times {2}^{2}  + 4 \times 2 - 12 \\  \\   \rm \implies f(2) = 8 \times 4 + 8 - 12 \\  \\   \rm \implies f(2) = 32 - 4 \\  \\   \rm \implies f(2) = 28

3 0
2 years ago
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