Simplily (5+√7) ×(5-√7)
Answers
Answered by
2
Step-by-step explanation:
we can use the formulae (a+b)(a-b)=a^2-b^2
=5^2-(√7)^2
=25-7
=22
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Answered by
1
Answer:
Answer:
18
Step-by-step explanation:
(5+✓7)(5-✓7) = (5)^2 - (✓7)^2 = 25-7 = 18
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