Question

Sendo A= (x+2)², B= (x+3) (x-3) e C= (x-1)², determine o valor de A+B+C

Answer 1

 A+B+C =  (x+2)² + (x+3) (x-3) + (x-1)²

 x² + 4x + 4 +  x² - 9 +  x² - 2x + 1

 3x² + 2x - 4