Question

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Answer 1

Hello..

Answer 2

What are you trying to find?

Answer 3

complete the square?

Answer 4

I am here for the same.. :)

Answer 5

I am interested in learning the concept, because I got an entire page of these

Answer 6

divide off the 3 and you have a 'usual' looking setup

Answer 7

Amistre is well experienced than me, If I am not allowing him to teach you, then I am spoiling your future.. :P

Answer 8

now the key is in understanding what a complete square looks like to start with

(x+n)^2 is a perfect square ... what do we get when we expand it?

Answer 9

(x+n)(x+n) = x^2 + 2nx + n^2

Answer 10

when we compare a perfect square to some trinomial ...

x^2 + bx + c = x^2 +2n x + n^2

2n = b, giving us n = b/2

right?

Answer 11

the number to add therefore is n^2 = (b/2)^2

Answer 12

3x^2 + 8x + __ = -1 + ____


3(x^2 + 8/3 x + __) = -1 + ____

n = (8/3)/2

lets add/subtract in [(8/3)/2]^2

3(x^2 + 8/3 x + (8/6)^2 - (8/6)^2) = -1 + ____

Answer 13

.. you said you understood so far ...

Answer 14

(x+n)(x+n) = x^2 + 2nx + n^2

when we compare a perfect square to some trinomial ...

x^2 + bx + c = x^2 +2n x + n^2

2n = b, giving us n = b/2

Answer 15

since your case gives us b=8/3 ... what do we determine?

Answer 16

that fine as well :)

Answer 17

now we need to add/subtract n^2 to 'complete the square'

Answer 18

x^2 + bx + c +n^2 - n^2

(x+n)^2 + c - n^2

Answer 19

this is a process yes

Answer 20

to apply it

3((x+4/3)^2 - (4/3)^2) = -1 + ______

3(x+4/3)^2 - 3(4/3)^2 = -1 + ______

3(x+4/3)^2 - 16/3 = -1 + ______

3(x+4/3)^2 -13/3 - 3/3 = -1 + ______

3(x+4/3)^2 -13/3 = ______

but thats all i can make of this really

Answer 21

it may help to detemrine how i need to go with it yes

Answer 22

ok, now im wondering what the quesiton is asking for ... can you provide a picture of it to eliminate any loss in translation

Answer 23

are the blanks on the left and the right spose to be the same value?

Answer 24

then yeah, draw it out the best you can

Answer 25

good luck