Answer:
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
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check
(2*1+4)*2-12=0
12 - 12 = 0
0 = 0
the answer is good
B = 2
Distribute..
2b+4(2)-12=0
combine like terms
2b+8-12=0
2b-4=0
Now solve this simple 2 step equation...
+4=+4 <- add 4 to both sides
----------
2b=4
/2 = /2 <- divede both sides by 2
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see explanation
The = i
2497.22...
d= s x t
=50km/h x 3h
= 150km/h
-2
add 3 to 11 and then divide 14 by -7
