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AleksandrR [38]
4 years ago
8

What are the possible values of x if (4x – 5)2 = 49? check all that apply. -4/5 -1/2 3 5 7

Mathematics
2 answers:
dexar [7]4 years ago
9 0
4 x - 5 = - 7
4 x = - 2
x = -\frac{1}{2}
or 
4 x - 5 = 7
4 x = 12
x = 3
Answer B) and C)

fenix001 [56]4 years ago
6 0
(4x-5)^2 = 49

Extract square root from both sides

4x-5 =(+/-)7

4x = 5 +7 and 4x = 5 -7

4x = 12 and 4x = -2

x = 12/4 and x = -2/4

x= 3 and x =-1/2
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