How do you find all zeros of the function #f(x) = x² – 9x – 70#? Precalculus Polynomial Functions of Higher Degree Zeros 1 Answer George C. Aug 11, 2018 Answer: #f(x)# has zeros #x=14# and #x=-5# Explanation: Given: #f(x) = x^2-9x-70# Find two factors of #70# which differ by #9#. The pair #14, 5# works. Hence we find: #f(x) = x^2-9x-70 = (x-14)(x+5)# So #f(x)# has zeros #x=14# and #x=-5# 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 309 views around the world You can reuse this answer Creative Commons License
