Question

- Determine os zeros das funções a seguir:

a- f (x) = 2x + 5
b- f (x) = 3x - 10
c- f (x) = x – 6
d- f (x) = 6x + 12

Answer 1

Explicação passo-a-passo:

a)

2x + 5 = 0

2x = -5

x = -5/2

b)

3x - 10 = 0

3x = 10

x = 10/3

c)

x - 6 = 0

x = 6

d)

6x + 12 = 0

6x = -12

x = -12/6

x = -2

Answer 2

Resposta:

Explicação passo-a-passo:

$a)\ f(x)=2x+5\\2x+5=0\\2x=-5\\x=-\frac{5}{2}\\\\b)\ f(x)=3x-10\\3x-10=0\\3x=10\\x=\frac{10}{3}\\\\ c)\ f(x)=x–6\\x-6=0\\x=6\\\\d)\ f(x)=6x+12\\6x+12=0\\6x=-12\\x=-\frac{12}{6}\\x=-2$