Simplify. √-112 A. 4√7 B. -4i√7 C. 4i√7 D. -4√7 √ is a square root sign btw

asked Dec 24, 2019 134k views

4 votes

Simplify.

√-112

A. 4√7
B. -4i√7
C. 4i√7
D. -4√7

√ is a square root sign btw

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5 votes

√-122 = √(-1) × √122 Obs. √-1 = i

= i × √(16×7) =

= i × 4√7 =

= 4i√7 ⇒ Answer C.

Ranu answered Dec 25, 2019

by Ranu

7.5k points

5 votes

C. 4i√7 is your answer because

√-112 = √112*√-1 = 4√7*√-1 = 4i√7

Tehnolog answered Dec 31, 2019

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