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Quadratic and Other Polynomial Expressions, Equations, and Functions Videos 18 videos

TSI Math: Understanding Points of Intersection
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Two parabolas are graphed in the coordinate plane. Parabola A is a function, and parabola B is not a function. What is the maximum number of points...

TSI Math: Solving a Quadratic Equation for x
5 Views

What is x for the equation 2x² + 36 = -18x?

TSI Math: Finding a Line's x-Intercept Given a Point on that Line
4 Views

Which of the following points is a location where the function f(x) = -2x² + 12x + 54 crosses the horizontal axis?

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TSI Math: Multiplying, Then Simplifying a Bunch of Squares 5 Views


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Description:

Simplify.


Transcript

00:02

Okay sy shmoop er's One word simplify Alright get square

00:05

to five times quantities Grow five square to six So

00:13

you know what they ask Square roots got you down

00:16

well turned those frown causing symbols upside down So we

00:19

write squared of five is a smiley face and change

00:22

these grow to six to ah heart and then distribute

00:24

it you know like normal and it looks like this

00:27

anything multiplied by itself Even the smiley face is squared

00:31

so we get smiley face we heard plus smiley face

00:34

times heart and the square roots or having an existential

00:36

crisis Quick switch them back to math and we get

00:40

screwed if i've squared yeah so that's that five thing

00:43

right squares and square roots are in versace so they

00:45

undo one another in the first term Well now that's

00:48

crude of five and screw to six aren't symbols The

00:50

numbers under the square roots can be multiplied together and

00:52

we've got five pla spirit of five times six or

00:56

square root of thirty Well thirty doesn't have any perfect

00:59

square factors so the answer here is just five plus 00:01:02.604 --> [endTime] the square root of thirty

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