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y^2+25
[#permalink]
24 Sep 2018, 10:15
24 Sep 2018, 10:15
Expert Reply
00:00
Question Stats:
50% (00:39) correct
50% (00:17) wrong based on 32 sessions
Hide Show timer Statistics
Quantity A |
Quantity B |
\(y^2 +25\) |
\(( y-5)(y-5)\) |
A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
Re: y^2+25
[#permalink]
14 Jan 2019, 07:40
14 Jan 2019, 07:40
Quantity A = y^2 + 25
Quantity B = ( y - 5) ( y - 5)
= y^2 - 5y - 5y + 25
= y^2 + 25 - 10y
Since the value of y can be of any positive, negative or zero numbers, the answer is D.
Quantity B = ( y - 5) ( y - 5)
= y^2 - 5y - 5y + 25
= y^2 + 25 - 10y
Since the value of y can be of any positive, negative or zero numbers, the answer is D.
Re: y^2+25
[#permalink]
14 Jan 2019, 19:17
14 Jan 2019, 19:17
Expert Reply
Carcass wrote:
Quantity A |
Quantity B |
\(y^2 +25\) |
\(( y-5)(y-5)\) |
A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
A= \(y^2+25\)
B=\((y-5)^2=y^2+25-10y=A-10y\)
If y is 0, both are equal
If y >0, A is greater
IF Y<0, B is greater.
D
