√8(√2-x)=11 a.) -7√2/2 b.) -7√2/4 c.) -7√8/8
2 answers:
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Answer:
Please see the attached picture for the full solution.
*From the 4th line of the 1st image, you could also expand it using
(a +b)²= a² +2ab +b² and
(a -b)²= a² -2ab +b².
When squaring a fraction, square both the denominator and numerator.
➣(a/b)²= a²/b²
