Find the value of a²+ b² when
(ii) a - b = 5, ab = 14
Answers
Answered by
1
Step-by-step explanation:
a- b = 5
squaring both side
(a-b)^2 = 25
a^2 + b^2 -2(ab) = 25
a^2 + b^2 - 28 = 25
..
a^2 + b^2 = 53
Answered by
6
Answer:
53
Step-by-step explanation:
a-b = 5
= (a-b)² = 25
a² -2ab + b² = 25
a² + b² -2(14) = 25
a² + b² -28 = 25
a² + b² = 25 + 28
a² + b² = 53
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