Question 1000169
f(x+h)=4(x+h)+3=4x+4h+3
g(x+h)=(x+h)^2=x^2+2xh+h^2
f(x+h)=-(x+h)+1=-x-h+1
f(x-h)=-(x-h)+1=-x+h+1
x=(1/2)(1+/-sqrt(1+4)=(1/2)(1+/-sqrt(5); roots about 1.68 and -0.55
{{{graph(300,200,-10,10,-10,10,x^2-x-1)}}}