f'(x)=4x-3
f'(x0)=1
g(x)=f'(x0)*(x-x0)+f(x0)=x-1
1) 2 33/55
2) 4 18/35
3) 11 1/9
3+8 5/12=11 5/12 10 6/7-3=7 6/7 4 2/13+5 7/13=54/13+72/13=(54+72)/13=126/13=9 9/13 8 7/12-4 2/12=4 5/12 4 8/11+5 7/11=9 5/11 7 5/9-2 8/9=68/9-26/9=(68-26)/9=42/9=4 2/3 7-3/8=7/1-3/8=(56-3)/8=53/8=6 5/8 10-3 7/15=10/1-52/15=(150-52)/15=98/15=6 8/15