Me Ajudem a resolver!
Anexos:



Soluções para a tarefa
Respondido por
2
Boa noite Maria
a)
18 - 6 = 12
12*6 = 8x
8x = 72
x = 9
b)
8*9 = 2x²
x² = 72/2 = 36
x = 6
c)
x*(4x - 1) = 3x*(x + 1)
4x - 1 = 3x + 3
4x - 3x = 3 + 1
x = 4
a)
18 - 6 = 12
12*6 = 8x
8x = 72
x = 9
b)
8*9 = 2x²
x² = 72/2 = 36
x = 6
c)
x*(4x - 1) = 3x*(x + 1)
4x - 1 = 3x + 3
4x - 3x = 3 + 1
x = 4
Perguntas interessantes