Question

QUADRADO DA SOMA
a)(a + 8)² =
b) (4 + m)² =
c) (4a + 3)² =
d) (2x + y)²=​

Answer 1

Resposta:

a) a² + 16a + 64

b) 16 + 16m + m²

c) 16a² + 24a + 9

d) 4x² + 4xy + y²

Explicação passo-a-passo:

a) (a + 8)² = (a + 8).(a + 8) = a² + 8a + 8a + 64 = a² + 16a + 64

b) (4 + m)² = (4 + m).(4 + m) = 16 + 4m + 4m + m² = 16 + 16m + m²

c) (4a + 3)² = (4a + 3).(4a + 3) = 16a² + 12a + 12a + 9 = 16a² + 24a + 9

d) (2x + y)² = (2x + y).(2x + y) = 4x² + 2xy +2xy + y² = 4x² + 4xy + y²