Question

1) Aplicando as regras dos produtos notáveis, desenvolva:
a) (x + 3)² = b) (x + 1)² = c) (2x + 5)² = d) (-3x + 2)² = e) (x – 5)² = f) (x – 2)² = g) (3x – 4)² = h) (3 – 2x)² =

Answer 1

1)

a)

(x + 3)² = x² + 6x + 9

b)

(x + 1)² = x² + 2x + 1

c)

(2x + 5)² = 4x² + 20x + 25

d)

(-3x + 2)² = 9x² - 12x + 4

e)

(x - 5)² = x² - 10x + 25

f)

(x - 2)² = x²- 4x + 4

g)

(3x - 4) = 9x² - 24x + 16

h)

(3 - 2x)² = 9 - 12x + 4x²