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Lunna [17]
3 years ago
10

7(2x+3)=21+14x can someone tell me the answer

Mathematics
2 answers:
erica [24]3 years ago
8 0

Answer:

Every number is correct

Step-by-step explanation:

Simplify the equation:

7(2x+3)=21+14x

14x+21=21+14x

You see here that they are equal. No matter what x you put in they will always be equal. The answer is all numbers

Nesterboy [21]3 years ago
4 0
They are both equal. You can just leave it at 14x+21 =21+14x, but if you are not satisfied with it (and don’t want to leave it as 0=0), since it’s addition, you can change the order because it will be the same. In other words, leave it as 14x + 21 = 14x + 21

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(2a^x +1/2 b^x)^2 thank you!!!!!!!!!!!!!!!!!!!1
kogti [31]
Note that (a+b)^2 = a^2 + 2ab + b^2.

Therefore, 
                                                                              b^x         (b^x )^2
<span>(2a^x +1/2 b^x)^2 becomes (2a^x)^2 + 2(2a^x)(-------- ) + ------------
                                                                                 2               4

LCD is 4.  Thus, we have
                                             
            4 [ (2a^(2x) ] + 8</span>a^x*b^x + b^(2x)
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3 0
4 years ago
What is the solution of sqrt x^2 + 49 = x +5
Sunny_sXe [5.5K]
The first option. x=12/5
4 0
3 years ago
Read 2 more answers
I need help solving this , help !
marin [14]

Answer:

NO

Step-by-step explanation:

Triangle A suggests that the triangle is isosceles.

Isosceles:

Triangle with two congruent angles and sides:

7 , 6 , 7

5 , 4 , 5

9, 12 , 9

Triangle B suggests that the triangle is scalene.

Scalene:

Triangle with no congruent angles or sides:

5 , 6 , 7

10 , 15 , 7

12 , 18 , 21

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

6 0
3 years ago
I need to know how to find the measurements of angles 1,2,and3 step by step
Monica [59]

so to find angle one you just subtract the other angles from 180°

180°-33°-92°=55°

angle 2 is going to be equal to the adjacent angle every time so it's equal to 92°

angle 3 you just subtract everything from 360°

360°-90°-115°-92°= 63°

6 0
3 years ago
3 to the power of -4
leva [86]
Three to the power of negative four is 81
3 0
3 years ago
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