How do you find all the zeros of #F(x)=x^2-25#? Precalculus Polynomial Functions of Higher Degree Zeros 1 Answer David G. · Jim H Mar 7, 2016 The zeroes (or 'roots') of a function occur when it crosses the x-axis, the line #y=0#. Let #x^2-25=0#. Rearranging #x^2=25 to x=+-sqrt25=+-5#. The roots are #+5# and #-5#. Answer link Related questions What is a zero of a function? How do I find the real zeros of a function? How do I find the real zeros of a function on a calculator? What do the zeros of a function represent? What are the zeros of #f(x) = 5x^7 − x + 216#? What are the zeros of #f(x)= −4x^5 + 3#? How many times does #f(x)= 6x^11 - 3x^5 + 2# intersect the x-axis? What are the real zeros of #f(x) = 3x^6 + 1#? How do you find the roots for #4x^4-26x^3+50x^2-52x+84=0#? What are the intercepts for the graphs of the equation #y=(x^2-49)/(7x^4)#? See all questions in Zeros Impact of this question 9299 views around the world You can reuse this answer Creative Commons License