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9966 [12]
2 years ago
8

Find all real solutions of the equation. ( 2 b + 4 ) 2 − 12 = 0

Mathematics
2 answers:
Sveta_85 [38]2 years ago
6 0

Answer:

<h2><u><em>b = 1</em></u></h2>

Step-by-step explanation:

Find all real solutions of the equation. ( 2 b + 4 ) 2 − 12 = 0

( 2 b + 4 ) 2 − 12 = 0

4b + 8 - 12 = 0

4b - 4 = 0

4b = 4

b = 1

-------------------

check

(2*1+4)*2-12=0

12 - 12 = 0

0 = 0

the answer is good

Simora [160]2 years ago
3 0

Answer:

B = 2

Step-by-step explanation:

( 2 b + 4 ) 2 − 12 = 0

Distribute..

2b+4(2)-12=0

combine like terms

2b+8-12=0

2b-4=0

Now solve this simple 2 step equation...

2b-4=0

+4=+4     <- add 4 to both sides

----------

2b=4

/2  = /2    <- divede both sides by 2

-----------

B = 2

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