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Help me!! solve for d
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5 votes
Help me!!
solve for d

Help me!! solve for d-example-1
User Pablo Marambio
by
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1 Answer

6 votes

Answer:

d =±2sqrt(7) i

Explanation:

d^2 = -28

Take the square root of each side

sqrt(d^2) = ±sqrt(-28)

d = ±sqrt(-28)

d = ±sqrt(-1)sqrt(28)

We know that sqrt(-1) = i

d =±i*sqrt(4)sqrt(7)

d =±i 2sqrt(7)

d =±2sqrt(7) i

User Revell
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