Question

d) (x - a) (x + a)
4- Sabendo que a² + b2 = 52 e ab = 24. Qual o valor de (a - b)??
a) 6
b) 4
c) 10
d) 12
+​

Answer 1

Resposta:

(a−b)

2

=a

2

−2ab+b

2

=a^{2}+ b^{2} -2ab=a

2

+b

2

−2ab

=52-2.24= 52-48= 4=52−2.24=52−48=4