Complete the square for the following:

a) 3x^2 + 7x + 2
b) 2x^2 - 7x + 3
c) 3x^2 - 11x + 6
d) - 4 x^2 + 4x + 35
e) - 10x ^2 - 11x + 6
THANKS SO MUCH

a) 3x^2 + 7x + 2= 3(x²+7x/3) +2
=3[x²+7x/3 +(7/6)²]+2-49/12
=3(x+7/6)² -45/12

b) 2x^2 - 7x + 3=2(x²-7x/2) +3
=2[x²-7x/2+ (7/4)²]+3-49/8
=2(x-7/4)²-25/8

c) 3x^2 - 11x + 6 =3(x²-11x/3) +6
=3[x²-11x/3 +(11/6)² +6-121/12
=3(x-11/6)²- 496/12

d) - 4 x^2 + 4x + 35=-4(x²-x) +35
=-4[x²-x+(1/2)²]+35+1
=-4(x-1/2)² +36
e) - 10x ^2 - 11x + 6=-10(x²+11x/10) +6
=-10[x²+11x/10+ (11/20)²] +6+121/40
=-10(x+11/20)² +361/40