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3 years ago

Factor completely 2r²-32

Mathematics

1 answer:

diamong [38]3 years ago

5 0

Answer:

2(r+4)(r-4)

Step-by-step explanation

First, you want to factor out 2 from both terms, which gives you 2(r^2-16). Then you want to recognize that (r^2-16) is factorable into 2 terms. If you multiply (r+4) by (r-4) then you are given (r^2-16) as a result.

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4. If DF = 9x - 39, find EF. Help I’m so confused!!!!

topjm [15]

Answer:

EF =58

Step-by-step explanation:

from the illustration,

EF =DF - DE

given that DF =9x-39 , DE =47 EF=3x +10

substitute them into the formula,

3x +10=9x-39 - 47

solving for x

3x +10 =9x -86

grouping like terms

3x - 9x =-86 -10

-6x=-96

dividing through by -6

 $\frac{ - 6x}{ - 6} = \frac{ - 96}{ - 6}$ 

 $x = \frac{96}{6}$ 

 $x = 16$ 

but EF=3x+10

substitute x=16 into it to get the EF

EF= 3(16)+10

EF=48+10

EF=58

6 0

3 years ago

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What is a comparison of numbers or variables that can be written in fraction form

frozen [14]

I believe
4 and 6
4/1 and 6/1

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3 years ago

Parent function of h(x)=|x+5|-2

gavmur [86]

Answer:

g(x)=|x|

Step-by-step explanation:

3 0

3 years ago

Solve this problem 8x + 4(x-1) a. 32x+3 b. 12x-4 c. 12x+4 d. 9x-4

Lilit [14]

Answer:

Step-by-step explanation:

8x +4(x -1)

Expand by multiplying 4 into each term inside the bracket:

= 8x +4(x) +4(-1)

= 8x +4x -4

Simplify

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Thus, the answer is b.

7 0

2 years ago

Read 2 more answers

I can't quite figure out what ( 7- 4n ) x 6 is with distributive property.

Tema [17]

Answer:

(42-24n)

Step-by-step explanation:

(7-4n)×6

take the 6 and multiply it to the integers in the paraenthesis.

so you take the ouside number which is 6 and multiply it with the first number which is 7 in the paraenthesis.

6×7=42

(42-4n)

then take the next number 4n and multiply by 6

4n × 6 = 24n

finally put it all together

(42-24n)

sorry if that didnt help

7 0

3 years ago

Factor completely 2r²-32​

Factor completely 2r²-32