simplify (√11 - √7) (√11 + √7)
Answers
Answered by
1
Answer:
(√11-√7)(√11+√7)
=(√11)²-(√7)²
=11-7
=4
Answered by
1
Answer:
4
Step-by-step explanation:
(√11 - √7) (√11 + √7)
⇒ (a - b) (a + b)
⇒ a² - b²
⇒ (√11)² - (√7)²
⇒ 11 - 7
⇒ 4
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