Consider the expression?
Please help me !
2 answers:
Answer:
sqrt(-8x+5)
Step-by-step explanation:
(5-8x)
-----------------
sqrt(-8x+5)
We need to rationalize the denominator
(5-8x) sqrt(-8x+5)
----------------- * ---------------
sqrt(-8x-5) sqrt(-8x+5)
(5-8x) sqrt(-8x+5)
----------------- * ---------------
(-8x+5)
The first term cancels
sqrt(-8x+5)
Answer:
Second option
Step-by-step explanation:
The radical represents the square root, i.e power ½
(5 - 8x) ÷ (5 - 8x)^½
(5 - 8x)^(1-½)
(5 - 8x)^½
(-8x + 5)^½ (just a rearrangement)
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