If (a + b) = 12 and ab = 14, then (a 2 + b 2 ) = ?

Question

Philoid · Accepted Answer

From the formula,

(a + b)² = a² + b² + 2ab

We get,

= a+ b = 12 and ab = 14

By putting values, we get,

12² = a² + b² + 2× 14

= a² + b² = 144 – 28 = 116.

If (a + b) = 12 and ab = 14, then (a2 + b2) = ?