Heyyo, can i get some ?
to complete the square, how do you find the value that must be added to the expression to make a perfect square trinomial?
what is the value? x^2 + 2/5x + ?

a)square 2/5 and add to both sides; 4/25
b)take half of 2/5 and add to both sides; 1/5
c)square half of 2/5 and add to both sides; 1/25
d)take half of 2/5 and add the opposite to both sides; −1/5

C) Square half of and add to both sides;

Step-by-step explanation:

x² + x + c

c = ( × )² = ()² =

the surface area is 124cm²

step-by-step explanation:

length: 4cm

width: 9cm

height:   2cm

hi there!

first we need to find out how much they are adding to each number to make the next number.

ex: 4 + 4 = 8, 8 + 8 = 16, and so on.

so continuing with 32,

32 + 32 = 64

64 + 64 = 128

128 + 128 = 256

256 + 256 = 512

4, 8, 16, 32, 64, 128, 256, 512

the 8th term of the sequence will be 512

hope this ! ~