Question

(2a – 5)2 + 3a – 2a2 + (a + 2).(a – 2) qual o resultado + a conta

Answer 1

(2a – 5)2 + 3a – 2a2 + (a + 2).(a – 2)

4a - 10 + 3a - 4a + a² - 4

-14 + 4a + a²

= a² + 3a - 14