Which of the following is a zero for the function f(x) = (x + 3)(x − 7)(x + 5)?

-3, 7, -5

Step-by-step explanation:

Because of the zero-product-property, we can set each of the groupings to 0, to get each of our 3 zeroes.

x+3=0, x=-3

x-7=0, x=7

x+5=0, x=-5

1/5^2 = 7.56/45

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so: