Question

Help with Math I don't understand it!

Answer 1

Me niether

Answer 2

Factor the perfect square trinomial.

Answer 3

you have x²+bx+(b/2)² case, if ti a perfect square trinomial.

Answer 4

\[9y^2-3/2y+1/16\]

Answer 5

this is not a perf. square.

Answer 6

thats what it says on my book.

Answer 7

your book sucks, you you miss-typed it.

Answer 8

I just want to know how to do this & a couple more questions, could you help me how to it step by step?

Answer 9

This is a topic about parabolas, right ?

Answer 10

No, I checked it three times. It's what the book says.

Answer 11

Kinda, I just need to factor.

Answer 12

I can't work with you if you don't tell me where is this coming from.

Answer 13

I have to factor it. I am just confused with how to do it with the fractions.

Answer 14

I want to just figure out.
If it is from a topic of parabolas, opening to the left, then it is equal to zero, and you just need to MAKE it a perfect square, plus or minus some number. like
(y+b)²-c

Answer 15

it should be
x=(y+b)²+c

Answer 16

IF it is not about parabolas, then all I can say is that you it is time for a better math textbook.

Answer 17

your book is bad or you typed the wrong thing lol

Answer 18

No, I checked it. I typed it all correctly.

Answer 19

How do you factor it out then.

Answer 20

Is it able to be factored?

Answer 21

you know what take a snapshot and post it. make sure it is legible

Answer 22

Ok.

Answer 23

@xapproachesinfinity

Answer 24

its number 29

Answer 25

I mean 28

Answer 26

i see now \(\large 9y^2-\frac{3}{2}y+1/16=(3y)^2-(3/2) y+(1/4)^2\)

Answer 27

it is a perfect square

Answer 28

Can you teach me how to do it step by step?

Answer 29

\((a-b)^2=a^2-2ab+b^2\)
a=3y
b=1/4
2ab=2 3y(1/4)=(6/4)y=(3/2)y

Answer 30

Ok.

Answer 31

So what do I substitute the letters with the numbers?

Answer 32

a=3y
b=1/4

Answer 33

Is that all?

Answer 34

\((3y-1/4)^2\) that's all

Answer 35

if you disribute that you get to the original one

Answer 36

Wow

Answer 37

That was simple. So when do I know when to use this formula?

Answer 38

but you need to learn to recognize that binomial

Answer 39

good Q!

Answer 40

let's say you have 4x^2-12x+9
first make sure you have to do (2x)^2 and the last term 9=3^2
so you have perfect squared
check if 2.3.2x=12x
then you have (2x-3)^2
you need to know that (a-b)^2=a^2-2ab+b^2
also (a+b)^2=a^2+2ab+b^2
you have to recognize this in expressions

Answer 41

Ok.

Answer 42

Do you have time for one more question?

Answer 43

Not really, I'm leaving now. sorry>.<

Answer 44

Ok. Thanks anyway

Answer 45

welcome