Question

Write the expression in standard form.

Answer 1

\[(x+2)^2\]

Answer 2

I know the next step is \[(x+2)(x+2)\]

Answer 3

In order to answer this, you would have to know the standard form of a quadratic expression in advance.

Answer 4

I know the quadratic formula.

Answer 5

Said nothing about quadratic formula. Not needed to solve this.

Answer 6

Don't you do the Foil Method?

Answer 7

Nope.

Answer 8

FOIL is not needed for this.

Answer 9

You said “quadratic” made me think is that..

Answer 10

Oh

Answer 11

@Flamo think distributive property for this.

Answer 12

If you have \((x + 3)(x + 7)\) let \(a = (x + 3), b = x \text{ and } c = 7\)

Answer 13

So.. a=\[x+2\]b=\[x\] and c=\[2\]

Answer 14

Then \(a(b + c) = (x + 3)(x + 7) = x(x + 3) + 7(x + 3) = ab + ac = x^2 + 3x + 7x + 21\)

Answer 15

\(= x^2 + 10x + 21\) No FOIL needed

Answer 16

Is this reverse factoring?

Answer 17

Yes @EndersWorld

Answer 18

Yes @EndersWorld

Answer 19

Next problem IS factoring and I ai t feeling good about it.

Answer 20

Not to worry. We will get through it together.

Answer 21

Oh, I see

Answer 22

\[x(x+2)+2(x+2)\]

Answer 23

\[x^2+2x+2x+4\]

Answer 24

Beautiful work so far.

Answer 25

\[x^2+4x+4\]

Answer 26

Bingo

Answer 27

Next is factoring... the bane of my existence...

Answer 28

Never liked FOIL anyways. I always knew there was something wrong with the method. I like more automated processes rather than mnemonic techniques. mnemonic techniques like FOIL are not purely mathematical. That's my issue with it. It's a memory technique not a mathematical formula.

Answer 29

My memory is shot anyway.

Answer 30

That comment was more aimed @Flamo

Answer 31

Oh

Answer 32

Wanted his/her response on it.

Answer 33

I'm a he

Answer 34

Okay, so what are your thoughts on it? If it were up to me, FOIL would be banned in all countries worldwide

Answer 35

I used FOIL Before, Although I don't remember the other way to not using FOIL and still getting the correct answer.

Answer 36

But why would you want to ban FOIL?

Answer 37

Distributive Property is the only real mathematical method to use to multiply two binomials. It's either that or Stack Multiplication:

Answer 38

Oh wow, That is much easier to me now that I see it.