If a+b =14 and ab=20. Find the value for a sq + b sq
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⭐⭐⭐⭐⭐ ANSWER ⭐⭐⭐⭐⭐
Given, a+b = 14
Also, ab = 20 (Given)
Now, Squaring both sides of first expression, we get :
(a+b)² = (14)²
=> a²+b²+2ab = 196
=> a²+b² = 196-2(20)
=> a²+b² = 196-40
=> a²+b² = 156 [Ans.]
⭐⭐⭐ ALWAYS BE BRAINLY ⭐⭐⭐
Given, a+b = 14
Also, ab = 20 (Given)
Now, Squaring both sides of first expression, we get :
(a+b)² = (14)²
=> a²+b²+2ab = 196
=> a²+b² = 196-2(20)
=> a²+b² = 196-40
=> a²+b² = 156 [Ans.]
⭐⭐⭐ ALWAYS BE BRAINLY ⭐⭐⭐
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10
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