if a-b= 2 and ab= 48 then find the value of a²+b²
Answers
Answered by
3
Answer:
100
Step-by-step explanation:
(a-b) = 2
Squaring both sides,
(a-b)² = 2²
=> a² + b² - 2ab = 4
Because, ab = 48
a² + b² -2×48 = 4
=> a² + b² = 4 + 96= 100
Answered by
1
Answer:
a²+b² = 100
Step-by-step explanation:
(a-b) = 2
on squaring
(a-b)² = 2²
a²+b²-2ab = 4
a²+b² = 4 +2(ab)
= 4+2(48)
a²+b² = 4+96= 100
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