Question

simplifique as expressões abaixo:
a) x.(x - 1)² + x².(x + 3)

b) (x + 5)² - x.(x + 3)

c) (x + 1)² + (x - 1)² + 2 . (x + 1) . (x - 1)

Answer 1

a) (2x - 2)² + 2x² + 6²

b) (x + 5)² - 2x -3x=-5x