Quadratic function:convert to standard form?

Hi guys, i need help with these questions, i have attempted the questions myself and just wanted to double check my answers.

convert to standard form

1. **y**** = –3***x*^{2} + 2*x* + 1 ( the answer i got is Y=-3(x+1/3)^2 -2/3) is this correct?

2.*y* = 4(*x* + 5)(*x* – 2) ( i can't figure how to solve this one)

3. Y= -1/2 x^2 ( the answer i got is Y= 2(1-3)+2

*can someone please chck my answers and correct me i was wrong.*

Re: Quadratic function:convert to standard form?

I suspect standard form means f(x)=a*x^2 + b*x +c

Re: Quadratic function:convert to standard form?

Re: Quadratic function:convert to standard form?

The turning point form IS often referred as the Standard form, because it gives the most information.