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SAT Math: Which x-value Solves the System of Equations? 1 Views


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Description:

Which of the following x-values provides a solution to this system of equations?


Transcript

00:00

Yeah Whoa Okay As a team Asham Uppers Well got

00:06

another set of weird equations here Why minus taxes native

00:08

six And why Plus sixty six x squared minus five

00:11

XO I smell quadratic Which of the following X values

00:14

provides a solution to this system of equations Interesting Well

00:20

just like furniture to retail outlet store Sometimes we need

00:22

to rearrange a system of equations This time getting wide

00:25

by itself in both equations will really liven up the

00:28

place So Y equals two x minus six and y

00:31

equals X squared minus five Acts minus 66 is what

00:34

will d'oh So now we set the wise equal to

00:36

each other and then make one side equal to zero

00:39

so seldom equal We got this thing over here at

00:42

six I mean who knew him And then we're going

00:44

to do some simplifying here by subtracting too except from

00:47

this side It gets negative seven next year and we'll

00:49

add six there So that gets a sixty right there

00:51

Yeah Then we factor it We've got what in what

00:54

twelve times five is sixty and yes Oh that works

00:57

so x minus twelve times X plus five Those have

01:01

to be said to zero So what makes this thing

01:04

zeros Well we got a twelve in a negative five

01:07

there as potential excess The solutions to this system of

01:10

equations are X equals twelve and X equals negative five

01:13

The second one of which is our answer Choice of 00:01:15.98 --> [endTime] choice Yeah All right We're done Yeah

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