Please awnser this for me

What is not true about kl and mn? what is mn? (show )

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 9 + 12x + 4x^2

Without multiplying, tell which product is larger and why. 5 × 1/3 or 5 × 2/3 a)5 × 1/3 because 1/3 is less than 2/3 b) 5 × 1/3 because 1/3 is greater than 2/3 c) 5 × 2/3 because 1/3 is less than 23 d) 5 × 23 because 1/3 is greater than 2/3