simlify (4+√5) (4-√5)
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Answered by
1
Answer:
4²-✓5²
16-5
=11 .........….
Answered by
1
Answer:
answer is 11.
Step-by-step explanation:
(4+√5)(4-√5)
=(a+b)(a-b)=a^2-b^2
4^2-√5^2= 16-5=11
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