seb.cal
  • seb.cal
CORRECT ANSWER = MEDAL + FAN + TESTIMONIAL Question is attached to my first comment.
Mathematics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
jamiebookeater
  • jamiebookeater
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
seb.cal
  • seb.cal
1 Attachment
seb.cal
  • seb.cal
@JesseReyna
JesseReyna
  • JesseReyna
Hey

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

JesseReyna
  • JesseReyna
Do you know how to factor?
seb.cal
  • seb.cal
Yeah, but I SUCK @ it... I always get it wrong, seriously.
whovianchick
  • whovianchick
4z^2-16z+5 ------------ the two z^2's cancel out 2z^2+z-15 4-16z+5 -------- the two z's cancel out 2+z-15 4-16+5 ------- combine like terms 2-15 -7 7 --- = ---- -13 13
whovianchick
  • whovianchick
Do you have answer choices?
seb.cal
  • seb.cal
Yeah, I'll post them.
Insertnamehere352
  • Insertnamehere352
4z^2-16z+5 ------------ the two z^2's cancel out 2z^2+z-15 4-16z+5 -------- the two z's cancel out 2+z-15 4-16+5 ------- combine like terms 2-15 -7 7 --- = ---- -13 13
seb.cal
  • seb.cal
1 Attachment
JesseReyna
  • JesseReyna
You can't cancel out like that if there are adding and subtracting terms
JesseReyna
  • JesseReyna
Need to factor
JesseReyna
  • JesseReyna
Okay ill do it in word and then post it brb
whovianchick
  • whovianchick
No, you don't need to factor.
Astrophysics
  • Astrophysics
@whovianchick huh that makes no sense
whovianchick
  • whovianchick
x^2 x x^2+x ---- +---- is the same thing as -------- x^2 x x^2+x
Astrophysics
  • Astrophysics
No it's not
Astrophysics
  • Astrophysics
Factor @seb.cal
whovianchick
  • whovianchick
oh
Whitemonsterbunny17
  • Whitemonsterbunny17
Just a friendly reminder that direct answers are against the Anti-Cheating Policy. Even if you explain the answer afterward. Have a wonderful day, everyone!
whovianchick
  • whovianchick
i just thought about that
seb.cal
  • seb.cal
I figured I had to b/c the math that she did didn't match up with the answers.
whovianchick
  • whovianchick
IGNORE ME I GOT IT WRONG SUPER SORRY
Astrophysics
  • Astrophysics
|dw:1449865202144:dw|
seb.cal
  • seb.cal
@Whitemonsterbunny17 This is from a pretest.
Astrophysics
  • Astrophysics
Ok first lets factor the denominator, do you know how to do that?
Astrophysics
  • Astrophysics
Doesn't matter if it's a pretest, why would you want answers to just a pretest then...pretests are used to help you learn
seb.cal
  • seb.cal
By multiplying the 1st and 3rd terms, right? Then seeing if the factors match up to equal 1?
Astrophysics
  • Astrophysics
Mhm, well there's a 2 as a coefficient so it's a bit trickier, we want the product of 2 and -15 then figure out the factors -30
Astrophysics
  • Astrophysics
\[2z^2+z-15 \implies 3(2z-5)+z(2z-5)\]
seb.cal
  • seb.cal
Factors of -30: -30 and 1 5 and -6 (or reversed).
seb.cal
  • seb.cal
Oh, I see what you did there.. Okay, then what I do with that?
Astrophysics
  • Astrophysics
Now you must factor the numerator
Astrophysics
  • Astrophysics
Since we have \[\frac{ 4z^2-16z++15 }{ (3-z)(2z-5) }\]
Astrophysics
  • Astrophysics
that should be 3+z
Astrophysics
  • Astrophysics
So find the product of 4 and 15, then ask which two numbers add up to -16 and multiply to give that product
seb.cal
  • seb.cal
4 times 15 = 60. Factors of 60 = 60 and 1 6 and 10 5 and 12 3 and 20 4 and 15
seb.cal
  • seb.cal
but, I didn't do the negative side... So the answer would be -6 and -10?
Astrophysics
  • Astrophysics
Right so our product is 60, now note the middle number sorry I wasn't clear about it earlier, we want two numbers to add up to -16 and multiply to give 60
Astrophysics
  • Astrophysics
Yes exactly!
seb.cal
  • seb.cal
Woohoo! Yes!! alright, tehn since we have the denominator down... How exactly would I "plug in" -6 and -10 into the numerator?
Astrophysics
  • Astrophysics
So this is how we do it |dw:1449865798827:dw| see we replaced the -16z
Astrophysics
  • Astrophysics
Make sense?
JesseReyna
  • JesseReyna
here is the answer
1 Attachment
Astrophysics
  • Astrophysics
Now you can just factor out (2z-3) \[(2z-5)(2z-3)\] to get this
JesseReyna
  • JesseReyna
I showed all of the work on the paper
seb.cal
  • seb.cal
Yes! Okay! I was just about to write the numerator but u posted it, so cool! :P
seb.cal
  • seb.cal
Thank you thank you thank you SO much for all of this :) @Astrophysics and @JesseReyna
JesseReyna
  • JesseReyna
np
Astrophysics
  • Astrophysics
Ah I see you gave steps thought it was just direct answers @JesseReyna haha
JesseReyna
  • JesseReyna
No i dont do that direct answers is for yahoo
Astrophysics
  • Astrophysics
Ok, so everything makes sense now seb?
seb.cal
  • seb.cal
Yeah, 100%! :D
seb.cal
  • seb.cal
tysm :)
Astrophysics
  • Astrophysics
Cool, now you can just cancel oout common terms and get the answer
JesseReyna
  • JesseReyna
Tag me for any more help seb!
seb.cal
  • seb.cal
Awesome Sauce c:

Looking for something else?

Not the answer you are looking for? Search for more explanations.