Question

Which of the following is a zero for the function f(x) = (x − 15)(x + 1)(x − 10)?

X=-15
X=-10
X=1
X=15

Answer 1

The answer should be x=15 because once u subtract 15-15 u get 0 and then u substitute 15 in "x" and then. Multiply 0 by everything else n u get 0:))

Answer 2

we have the function

$f(x)=(x-15)(x+1)(x-10)$

we know that

The zero's of the function are the values of variable x when the value of the function is equal to zero

so

in the given function the zero's are

$x=15\\x=-1\\x=10$

therefore

the answer is

$x=15$