- 5x.
In case you actually want to know how I got it:
the question is just saying "8x - 13x".
8 - 13 = -5
Tan30=9/x so it will be 9((3)^1/2)
So i think here you would FOIL. so -5x^2+10x-5x+10 and then combine like terms :)
add 6a and 5a and get 11a
then:
11a=-11
a=-1
I did the PEMDAS method (P= parentheses, E= exponents, M= multiplication, D = Division, A= addition, S = subtraction.)
First I did what’s inside the parentheses, (6x2) and got 12.
Then I divided 16 by 22 and received 0.72.
I added 0.72 with 12 and the result was 12.72.
Last step was to subtract 12.72 - 8 and that equals 4.72
