SOLUTION: find all solutions of the equation xto the 4th power-16x to the 2nd power=0

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Question 347910: find all solutions of the equation xto the 4th power-16x to the 2nd power=0
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
Hi,
.
x%5E4+-+16%2Ax%5E2+=0
.
factor
x%5E2%28x%5E2-16%29+=+0
.
solve
x%5E2=0
x=0
x%5E2-16%29+=+0
x+=+root%282%2C16%29
x = +- 4
.
Solutions: -4, 0, 4