How do you use synthetic substitution to find f(3) and f(-4) for #f(x)= x^4-8x-11#? Precalculus Real Zeros of Polynomials Synthetic Division 1 Answer bp Sep 12, 2015 f(3)= 46 f(-4)= 277 Explanation: f(3)= #3^4 -8*3-11= 81-24-11=46# f(-4)= #(-4)^4 - 8(-4)-11= 256+32-11=277# Answer link Related questions What is synthetic division? What are common mistakes students make with synthetic division? How do I find the quotient and remainder using synthetic division? How do you write the remainder in synthetic division? How do I find the quotient #(x^3+5x^2+x-15)/(x+3)# by using synthetic division? How do I find the roots of a polynomial function by using synthetic division? How can synthetic division be used to factor a polynomial? How do I use synthetic division to find #p(-3)# for #p(x)=x^4-2x^3-4x+4#? Use synthetic division to find #p(4)# for #p(x)=x^4-2x^3-4x+4#? How do you use synthetic division to evaluate #f(3)# given that #f(x)=x^3+2x^2-7x+8#? See all questions in Synthetic Division Impact of this question 5139 views around the world You can reuse this answer Creative Commons License