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Mathematics 17 Online
OpenStudy (anonymous):

PLEASE HELP WILL FAN AND MEDAL Question attached in comments.

OpenStudy (anonymous):

@Photon336

OpenStudy (tkhunny):

Well, do it. Factors of 4 1*4 2*2 Which pair can give you a 3?

OpenStudy (photon336):

Before we do anything, what do you think the answer is?

OpenStudy (anonymous):

I don't know how to factor this it's weird to me. My guess would be putting x^2-3x-4 into the equation on the other side...

OpenStudy (photon336):

Yeah, factoring is one of this things that takes practice

OpenStudy (photon336):

so first thing you want to do is look at the term in the middle, what is the middle term both the value and the sign of that term?

OpenStudy (photon336):

@WhatEven we will do this step by step

OpenStudy (anonymous):

3x

OpenStudy (photon336):

positive or negative?

OpenStudy (anonymous):

negative

OpenStudy (photon336):

When factoring theres a step called foil. we know that the middle term is -3x right? and the last term is - 4. x^2-3x-4 (x )(x ) we see what terms would give us -4 and -3 |dw:1453162306087:dw| this is what foil means |dw:1453162159031:dw| let's try this out. |dw:1453162347726:dw| Then we multiply the inner terms (I) |dw:1453162436176:dw| now we combine all our steps. |dw:1453162515214:dw|

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