Simplify the Expression
https://study.ashworthcollege.edu/access/content/group/38441f94-71d6-46e6-8dd7-ece73f5a6548/algebra1_exam_10_files/mc008-1.jpg

Question

Simplify the Expression
https://study.ashworthcollege.edu/access/content/group/38441f94-71d6-46e6-8dd7-ece73f5a6548/algebra1_exam_10_files/mc008-1.jpg

anonymous · Answer

Like I said, I suck so badly at math.

unklerhaukus · Answer

$$\sqrt{10}-4\sqrt{10}$$
think of √10 as   X

X -4X = ?

unklerhaukus · Answer

you can factor out the X term

X -4X = (1-4)X

and simplify the numbers

anonymous · Answer

i'm completely lost :\

unklerhaukus · Answer

1 -4 ?

anonymous · Answer

-3

unklerhaukus · Answer

yeah, so 
X -4X = (1-4)X
          = -3X

unklerhaukus · Answer

√10 -4√10

is just the same

√10 -4√10 = (1 -4)√10
                   = . . .

anonymous · Answer

-3 √10????????

unklerhaukus · Answer

yes that is correct

anonymous · Answer

thank youuu

anonymous · Answer

could you help me with one more, @UnkleRhaukus ?

unklerhaukus · Answer

ok

anonymous · Answer

What is the measure of side c in the triangle below? https://study.ashworthcollege.edu/access/content/group/3759324e-d83a-428d-845d-dea00f763364/Monica/Geometry/t1.png

unklerhaukus · Answer

that's pythagorus 

Pythagorus' theorem say that
If $a$, $b$ and $c$ are the sides of a right angled triangle,
   where $c$ the is hypotenuse (longest side)
Then
$$a^2+b^2=c^2$$

unklerhaukus · Answer

solving this equation for the hypotenuse 
we get 
$$\sqrt{a^2+b^2}=c$$

anonymous · Answer

okay.

unklerhaukus · Answer

so the diagram gives you  a  and  b , and c is c