How do you use find the zeroes of $f(x)=(x+1)^2(x+7)$ ?

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Answer 1 · 2016-07-29T07:56:24

Zeros of $f(x)=(x+1)^2(x+7)$ are $-1$ and $-7$ .

As the function is product of monomials, it is easier to find zeros of $f(x)$ .

Zeros of a function, say of $x$ , are those values of $x$ , for which $f(x)$ becomes zero.

As $f(x)$ is a product of monomials. if any monomial becomes zero, the function becomes zero.

Hence zeros are given by $x+1=0$ i.e. $x=-1$ and

$x+7=0$ i.e. $x=-7$

Hencem zeros of $f(x)=(x+1)^2(x+7)$ are $-1$ and $-7$ .

How do you use find the zeroes of f(x)=(x+1)^2(x+7)f(x)=(x+1)^2(x+7)?