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30 May 2025, 00:30
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E
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
35%
(medium)
Question Stats:
74% (01:50) correct
26%
(02:14)
wrong
based on 156
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Date
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Not Attempted Yet
What is the sum of all values of that satisfy the equation 4x^2 +16=32x?
A) −8
B) −4√2
C) −4
D) 4√2
E) 8
Veritas Prep
Gentle note to all experts and tutors: Please refrain from replying to this question until the Official Answer (OA) is revealed. Let students attempt to solve it first. You are all welcome to contribute posts after the OA is posted. Thank you all for your cooperation!
A) −8
B) −4√2
C) −4
D) 4√2
E) 8
Veritas Prep
Gentle note to all experts and tutors: Please refrain from replying to this question until the Official Answer (OA) is revealed. Let students attempt to solve it first. You are all welcome to contribute posts after the OA is posted. Thank you all for your cooperation!
30 May 2025, 01:47
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4x^2 + 16 = 32x
x^2 + 4 = 8x
x^2 - 8x + 4 = 0
Comparing with ax^2+bx+c = 0
a = 1, b = -8, c =4
Sum of roots = -b /a = -(-8) / 1 = 8
Answer = E
x^2 + 4 = 8x
x^2 - 8x + 4 = 0
Comparing with ax^2+bx+c = 0
a = 1, b = -8, c =4
Sum of roots = -b /a = -(-8) / 1 = 8
Answer = E
30 May 2025, 20:13
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Bookmarks
4x^2 +16=32x
4x^2 -32x +16=0
4(x^2 -8x +4)= 0
x^2 -8x +4=0
We know, Sum of roots= -b/a =-(-8)/1 = 8
Answer: E
4x^2 -32x +16=0
4(x^2 -8x +4)= 0
x^2 -8x +4=0
We know, Sum of roots= -b/a =-(-8)/1 = 8
Answer: E
