What is the ratio to 4 apples and 2 bananas i need answers asap pl

What is the vertex form of f(x) = x2 + 6x + 3

Me n o w. i need t h i s. 10 points

One number is 4 less than 3 times a second number. if 3 more than two times the first number is decreased by 2 times the second number, the result is 11. use the substitution method. what is the first number?