Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing

This Question is Closed

FaisalAyaz Group TitleBest ResponseYou've already chosen the best response.0
(a+b)^2=a^2 + b^2 + 2ab
 2 years ago

satellite73 Group TitleBest ResponseYou've already chosen the best response.1
does that mean "multiply"? start with \[(4x+5)(4x+5)\] and do four multiplications
 2 years ago

FaisalAyaz Group TitleBest ResponseYou've already chosen the best response.0
(ab)^2 = a^2 + b^2 2ab
 2 years ago

satellite73 Group TitleBest ResponseYou've already chosen the best response.1
oops rather \[(4x5)(4x5)\]
 2 years ago

marmar3000 Group TitleBest ResponseYou've already chosen the best response.0
thankss(:
 2 years ago

satellite73 Group TitleBest ResponseYou've already chosen the best response.1
do four multiplications, combine like terms, and then tell your teacher (gently) that there is nothing "simpler" about your result than there is in \((4x5)^2\)
 2 years ago

marmar3000 Group TitleBest ResponseYou've already chosen the best response.0
is it 16x+25?
 2 years ago

satellite73 Group TitleBest ResponseYou've already chosen the best response.1
oh no! careful here
 2 years ago

satellite73 Group TitleBest ResponseYou've already chosen the best response.1
four multiplications i will write them out
 2 years ago

satellite73 Group TitleBest ResponseYou've already chosen the best response.1
\[(4x5)(4x5)=4x\times 4x5\times 4x5\times 4x+5\times 5\]
 2 years ago

FaisalAyaz Group TitleBest ResponseYou've already chosen the best response.0
(4x5)^2 = 16x^2 40x +25.
 2 years ago

marmar3000 Group TitleBest ResponseYou've already chosen the best response.0
16x40x+25?
 2 years ago

satellite73 Group TitleBest ResponseYou've already chosen the best response.1
then \(4x\times 4x=16x^2\) \(5\times 4x5\times 4x=20x20x=40x\) \((5)\times (5)=25\) final answer is \[16x^240x+25\]
 2 years ago

FaisalAyaz Group TitleBest ResponseYou've already chosen the best response.0
now factorize it or solve by formula \[x=b \pm \sqrt{b^{2}4ac}/2a\]
 2 years ago

FaisalAyaz Group TitleBest ResponseYou've already chosen the best response.0
no marmar it's 16x^2  40x +25. not 16x
 2 years ago

FaisalAyaz Group TitleBest ResponseYou've already chosen the best response.0
now use quadratic formula or apply factorization method.it's up to u
 2 years ago

FaisalAyaz Group TitleBest ResponseYou've already chosen the best response.0
U got it marmar? just use formula (ab)^2 = a^2 + b^2 2ab. then find x by factorization or quadratic formula.Simple!
 2 years ago

marmar3000 Group TitleBest ResponseYou've already chosen the best response.0
yea, thanks guys!
 2 years ago
See more questions >>>
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.