if a+b =14 and Ab =20 find the value of a2 + b2
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Answered by
7
Hey dear ☺️
Here we will apply formula of (a+b) ²
(a+b) ² = a²+2ab+b²
14²= a²+b²+2(20)
Because here give (a+b) =14 & ab=20
196= a²+b²+40
a²+b²= 196-40
= 156
Hope it helpful
Here we will apply formula of (a+b) ²
(a+b) ² = a²+2ab+b²
14²= a²+b²+2(20)
Because here give (a+b) =14 & ab=20
196= a²+b²+40
a²+b²= 196-40
= 156
Hope it helpful
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