can anyone please answer this question
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Answer:
-10+4√5
Step-by-step explanation:
a=2-√5/2+√5. b=2+√5/2-√5
a²-b²= 2-√5/2+√5 - 2+√5/2-√5
= 2(2-√5)-√5(2-√5) - 2(2+√5)+√5(2+√5) / (2)²-(√5)²
= 4-2√5-2√5+5-4-2√5+2√5+5 / 4-5
= 10-4√5/-1
= -(10-4√5)/1
= -10+4√5
hope this helps you
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