Which of the following is an extraneous solution of startroot 4 x 41 endroot = x 5? x = –8 x = –2 x = 2 x = 8
2 answers:
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First, recognize that all the numbers can be moved around because they are being multiplied together.
Next, rearrange the expression so that the whole-number coefficients are together:
Now try to simplify the square-roots to find any squares inside that can be reduced and taken out of the square-root:
Multiply the square roots together:
Now take out the square-root of 4 and simplify