ShmoopTube
Where Monty Python meets your 10th grade teacher.
Search Thousands of Shmoop Videos
TSI Math: Plugging Given Information Into a Complex Expression 0 Views
Share It!
Description:
Evaluate the expression when r = 6 and s = -2.
- Test Prep / TSI
- Intermediate Algebra and Functions / Quadratic and Other Polynomial Expressions, Equations, and Functions
- TSI / TSI Math
- TSI / TSI Mathematics
- TSI Mathematics / Intermediate Algebra and Functions
- Intermediate Algebra and Functions / Quadratic and Other Polynomial Expressions, Equations, and Functions
- Test Prep / TSI
- TSI Math / Intermediate Algebra and Functions
Transcript
- 00:03
Okay sy match members got another evaluation for you to
- 00:07
make hair evaluate this expression three times the quantity and
- 00:10
all that between the brackets there when our six and
- 00:13
s his negative too Well this seems kind of easy
- 00:17
Words going toe insert the numbers They're right Well initial
Full Transcript
- 00:20
facial expressions caused by this outbreak expression have been known
- 00:23
to include happy anxious and surprised You know like that
- 00:27
before this initial reaction fades to discuss do a little
- 00:29
substitution to remove the variables Substitute The values are equal
- 00:33
six and that's equals negative to into the expression right
- 00:36
here Parentheses Prevent signe errors and subsequent expressions of anguish
- 00:40
like that Constipated Okay so we rewrite this thing as
- 00:44
just with the big brackets there one minus and then
- 00:47
parentheses negative too And then squared And then over the
- 00:50
sixteen So put on an expression of determination The one
- 00:54
that looks like constipation too The one with furrowed eyebrows
- 00:57
Yeah that's better Thanks to the order of operations Parentheses
- 01:00
are the place to start Well in this expression there
- 01:02
are princes in princes in brackets So we start with
- 01:05
the innermost set and then work outwards So that gets
- 01:09
us teo Well one minus negative two squared over six
- 01:13
and we're going to do the quantity one plus two
- 01:15
because minus a negative is that so that's just three
- 01:17
squared which is nine and we're over six there So
- 01:20
nine over six in the parentheses Well that then gets
- 01:24
multiplied by three there and there are a couple of
- 01:27
ways to approach the final simplification But we'll cancel common
- 01:30
factors between the numerator and denominator first because we refer
- 01:33
to work with smaller numbers It's easier in the less
- 01:35
likely for ares So divide both three and six by
- 01:37
the common factor of three to simplify those values And
- 01:40
we got three tons quantity nine over six which is
- 01:42
really going to be three crossed out there and that
- 01:45
too And so it just gets you nine half that's
- 01:48
it The answer is c nine over to here's our 00:01:50.778 --> [endTime] expression of satisfaction over that one
Up Next
Which is the best way to revise and combine sentences 1 and 2?
Related Videos
Where would the following sentence best be placed?
Which of the following is best to insert at the beginning of sentence 8?
Which is the best location for sentence 9?
Which of the following sentences is best to insert between sentences 11 and 12?