Question

Which of the following is an extraneous solution of startroot 4 x 41 endroot = x 5? x = –8 x = –2 x = 2 x = 8

Answer 1

Answer:

its not d! its a -8

Step-by-step explanation:

Answer 2

The extraneous solution of startroot 4 x 41 endroot = x 5 will be A. -8.

What is an extraneous solution?

It should be noted that an extraneous solution simply means a root of a transformed equation which isn't part of the original equation.

✓4x + 41 = x + 5

Square both sides

4x + 41 = x² + 10x + 25

x² + 6x - 16

x(x + 8) - 2(x + 8) = 0

x + 8 = 0

x= 0 + 8 = 8

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