How do you find all the zeros of $F (x) = x^{2} - 25$ $F(x)=x^2-25$ ?

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How do you find all the zeros of $F (x) = x^{2} - 25$ $F(x)=x^2-25$ ?

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Answer 1 · 2016-03-07T21:41:45

The zeroes (or 'roots') of a function occur when it crosses the x-axis, the line $y = 0$ $y=0$ . Let $x^{2} - 25 = 0$ $x^2-25=0$ . Rearranging $x^{2} = 25 \to x = \pm \sqrt{25} = \pm 5$ $x^2=25 to x=+-sqrt25=+-5$ . The roots are $+ 5$ $+5$ and $- 5$ $-5$ .

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How do you find all the zeros of $F (x) = x^{2} - 25$ $F(x)=x^2-25$ ?

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