simplify ( 5_ 2 √6 ) (5+2√6)
A rational number equivalent to 8/7 is ________
Answers
Answered by
2
Answer:
Step-by-step explanation:
( 5-2 √6 ) (5+2√6)
=5²-(2√6)²
=25-2²*6
=25-24
=1
Answered by
4
Correct Question :
›»› Simplify (5 - 2√6) (5 + 2√6)
Answer :
›»› The value is 1.
Given :
- (5 - 2√6) (5 + 2√6)
To Find :
- Simplify the value.
Solution :
→ (5 - 2√6) (5 + 2√6)
Expand the expression using (a - b) (a + b) = a² - b²,
→ 5² - (2√6)²
Calculate power,
→ 25 - (2√6)²
Solve the power,
→ 25 - (2²(√6)²)
Calculate power,
→ 25 - (4(√6)²)
If we square the redical sign, it will disappear,
→ 25 - (4 * 6)
Multiply 4 and 6,
→ 25 - 24
Subtract 25 from 24,
→ 1
║Hence, the value is 1.║
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