How do you use synthetic substitution to find f(x)f(x) for x=2 given f(x)=7x^4-3x^3+x^2+5x-9f(x)=7x4−3x3+x2+5x−9? Precalculus Real Zeros of Polynomials Synthetic Division 1 Answer Alan P. Nov 20, 2015 f(2) = 93f(2)=93 Explanation: {: (,"|",7,-3,+1,+5,-9), (+,"|",,14,22,46,102), (,,"-----","-----","-----","-----","-----"), (xx(2),"|",7,11,23,51,color(red)(93)) :} 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 2877 views around the world You can reuse this answer Creative Commons License