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What is sum of the solutions of #64y^2=-81#?

Answer 1

Julia Adams

#0#

#y^2=-81/64# #sqrt(y^2)=sqrt(-81/64)# #|y|=sqrt(-81)/sqrt(64)# #y=-81/8# OR #-81/-8# #-81/8+81/8# #0#

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Answer 2

Jameson Allen

To find the sum of the solutions of the equation 64y^2 = -81:

Rearrange the equation to set it equal to zero: 64y^2 + 81 = 0
There are no real solutions to this equation because the square of any real number is always non-negative, but the right side of the equation is negative.
Therefore, the sum of the solutions of the equation is undefined for real numbers.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.