Drexel dragonThe Math ForumDonate to the Math Forum



Search All of the Math Forum:

Views expressed in these public forums are not endorsed by Drexel University or The Math Forum.


Math Forum » Discussions » Inactive » k12.ed.math

Topic: Give me a clue about this algebra problem
Replies: 1   Last Post: Jan 21, 2005 3:10 PM

Advanced Search

Back to Topic List Back to Topic List Jump to Tree View Jump to Tree View   Messages: [ Previous | Next ]
The Question

Posts: 2
Registered: 1/25/05
Give me a clue about this algebra problem
Posted: Jan 21, 2005 1:01 AM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

I need help with the following problem:
( I just need some clue as to what to do with the following problem:
7+5[(3 + 2)exponent 2 - (2 exponent 3 + 1)]

What I TRIED to do with this problem was this:
7+5[(3 + 2)exponent 2 - (2 exponent 3 + 1)]

becomes:
12[(5 exponent 2 - (8 + 1)]

which later becomes:
12[ (25)- (9)]
which ends up as:
12(16)
this SEEMS good....except that the four choices that are
available are:
A) 22 B)36 C) 87 D) 97

Since 16 X 12 = 192, that can't be the answer.
so.....I need help.....any clue on how to solve this problem?

--
submissions: post to k12.ed.math or e-mail to k12math@k12groups.org
private e-mail to the k12.ed.math moderator: kem-moderator@k12groups.org
newsgroup website: http://www.thinkspot.net/k12math/
newsgroup charter: http://www.thinkspot.net/k12math/charter.html



Point your RSS reader here for a feed of the latest messages in this topic.

[Privacy Policy] [Terms of Use]

© Drexel University 1994-2014. All Rights Reserved.
The Math Forum is a research and educational enterprise of the Drexel University School of Education.