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TSI Math: Plugging Given Information Into a Complex Expression 0 Views
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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
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