Question

SEE ATTACHMENT FOR QUESTION

Answer 1

@Erak

Answer 2

A

Answer 3

you basically complete the square
a^2+2ab+b^2=(a+b)^2
you have a^2 and 2ab already, so you just have to add b^2 to both sides to get the answer

Answer 4

x^2 - 5x = 0

Take half of the coefficient of the x term. -5/2

Square it. 25/4

Add 25/4 to both sides of the equation.

x^2 - 5x + 25/4 = 0 + 25/4

Write the left side of the equation as a square.

( x - 5/2)^2 = 25/4

Look at the options.

Do you see one that looks like: ( x - 5/2)^2 = 25/4

@hippoharry

Answer 5

the answer is A