$$\sqrt{16+16}=$$ (A) 4√2
(B) 8√2
(C) 16√2
(D) 8
(E) 16
The OA is the option A.
Why is A the correct answer? Could anyone show me how to get that answer? Please.
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\[ \sqrt{16+16}= \]
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Vincen
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Hello M7MBA.
Let's take a look at this question.
We have to rewrite the given expression to get one of the answer choices. We can do that as follows: $$\sqrt{16+16}=\sqrt{16\left(1+1\right)}=\sqrt{16\cdot2}=\sqrt{16}\cdot\sqrt{2}=4\sqrt{2}.$$ Thus we get that the correct asnwer is the option A.
I hope this helps you.
Let's take a look at this question.
We have to rewrite the given expression to get one of the answer choices. We can do that as follows: $$\sqrt{16+16}=\sqrt{16\left(1+1\right)}=\sqrt{16\cdot2}=\sqrt{16}\cdot\sqrt{2}=4\sqrt{2}.$$ Thus we get that the correct asnwer is the option A.
I hope this helps you.
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Brent@GMATPrepNow
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Useful rule: √(xy) = (√x)(√y)M7MBA wrote:$$\sqrt{16+16}=$$ (A) 4√2
(B) 8√2
(C) 16√2
(D) 8
(E) 16
So, √(16 + 16) = √(32)
= √(16 x 2)
= √16 x √2
= 4 x √2
= 4√2
Answer: A
Cheers,
Brent
Brent Hanneson - Creator of GMATPrepNow.com
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Brent@GMATPrepNow
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Brent@GMATPrepNow wrote:Useful rule: √(xy) = (√x)(√y)M7MBA wrote:$$\sqrt{16+16}=$$ (A) 4√2
(B) 8√2
(C) 16√2
(D) 8
(E) 16
So, √(16 + 16) = √(32)
= √(16 x 2)
= √16 x √2
= 4 x √2
= 4√2
Answer: A
Cheers,
Brent
Brent Hanneson - Creator of GMATPrepNow.com
GMAT/MBA Expert
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Jeff@TargetTestPrep
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√(16 + 16) = √32 = √16√2 = 4√2M7MBA wrote:$$\sqrt{16+16}=$$ (A) 4√2
(B) 8√2
(C) 16√2
(D) 8
(E) 16
Answer: A
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