If -4 is one of the zeros of function $f (x) = - 2 (x + 4) (7 x - 35)$ $f(x)=-2(x+4)(7x-35)$ what is the other zero of this function?

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If -4 is one of the zeros of function $f (x) = - 2 (x + 4) (7 x - 35)$ $f(x)=-2(x+4)(7x-35)$ what is the other zero of this function?

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Answer 1 · 2018-07-28T17:20:34

$x = 5$ $x=5$

Explanation:

$to find the zeros set f (x) = 0$ $"to find the zeros set "f(x)=0$

$- 2 (x + 4) (7 x - 35) = 0$ $-2(x+4)(7x-35)=0$

$equate each factor to zero and solve for x$ $"equate each factor to zero and solve for "x$

$x + 4 = 0 \Rightarrow x = - 4 \leftarrow the given zero$ $x+4=0rArrx=-4larrcolor(blue)"the given zero"$

$7 x - 35 = 0 \Rightarrow 7 x = 35 \Rightarrow x = 5 \leftarrow the other zero$ $7x-35=0rArr7x=35rArrx=5larrcolor(blue)"the other zero"$

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If -4 is one of the zeros of function $f (x) = - 2 (x + 4) (7 x - 35)$ $f(x)=-2(x+4)(7x-35)$ what is the other zero of this function?

1 Answer

Explanation:

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Science

Math

Humanities

... and beyond

If -4 is one of the zeros of function f(x)=−2(x+4)(7x−35)f(x)=-2(x+4)(7x-35) what is the other zero of this function?

1 Answer

Explanation:

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Impact of this question

If -4 is one of the zeros of function $f (x) = - 2 (x + 4) (7 x - 35)$ $f(x)=-2(x+4)(7x-35)$ what is the other zero of this function?