Question

calcule: a) (a+c)² b) (x+9)² c) (6a-1)² d) (x+8)²​

Answer 1

Olá...

calcule:

a) (a + c)²

(a + c) . (a + c)

a² + ac + ac + c²

a² + 2ac + c²

b) (x + 9)²

(x + 9) . (x + 9)

x² + 9x + 9x + 81

x² + 18x + 81

c) (6a - 1)²

(6a - 1) . (6a - 1)

36a² - 6a - 6a + 1

36a² - 12a + 1

d) (x + 8)²​

(x + 8) . (x + 8)

x² + 8x + 8x + 64

x² + 16x + 64

Bons estudos.