Y is also quadrupled
Its d
-√1.69 = -√(1.3×1.3) = -1.3
6/ sqrt(8)=
6/sqrt(8) * sqrt(8)/sqrt(8)
6sqrt(8)/8
3/4 * sqrt(8)
3/4 * sqrt(4*2)
3/4 * sqrt(4) * sqrt(2)
3/4 *2*sqrt(2)
3/2 *sqrt(2)
5/sqrt(11) *sqrt(11)/sqrt(11)
5sqrt(11)/11
5/11 *sqrt(11)
Answer:

Step-by-step explanation:
We want to solve for
in 
We expand to get:
We group similar terms to get:

This simplifies to 
Divide both sides by 7.8 to get

Answer:
48t^4
Step-by-step explanation:
First you simplify and cross out all the uneeded characters because this is a division equation
Then whatever is left you calculate it