(√11-√7)*(√11+√7)=?
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Answered by
0
Answer:
(√11-√7) × (√11+√7)
= (√11) ^2 - (√7)^2
= 11 - 7
= 4
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Answered by
1
Answer:
hey mate
(√11 - √7 ) × (√11 + √7) = (√11)² - (√7)²
= 11 -7 = 4
using identity
(a+b) ( a-b) = a²- b²
hope it will help you
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