If K√28+√63−√7=0, find K.
...If K√28+√63−√7=0, find K.
-2
-1
1
2
Correct answer is B
K√28+√63−√7=0
2K√7+3√7−√7=0
2K√7=−2√7
K=−2√72√7
K=−1
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