Question

Reduce: a + b = 4  ab = 3; Halle: a2+ b2

Answer 1

Solucion:

a + b = 4

ab = 3

(a + b)² = a² + 2ab + b²

(4)² = a² + 2(3) + b²

16 = a² + b² + 6

10 = a² + b²

Espero te haya ayudado:)