Question

Pic is in desc

Answer 1

@Abhisar @beccaboo333 @Compassionate

Answer 2

@phi

Answer 3

@thomaster @Zale101 @Whitemonsterbunny17 @zaibali.qasmi

Answer 4

you always take the number next to the x term in other words, the 4 from 4x
divide it by 2 and square it. 4/2 = 2. square it, 2*2= 4

you want a 4 to complete the square
you already have a 3. so add 1 to it to make it 4