Question 1136032

0.4 = 0.8(vgsq-1.2)^2<br>

Divide both sides by 0.8
0.5 = (vgsq-1.2)^2<br>

Take sqrt of both sides
0.7071 = (vgsq - 1.2)<br>

Add 1.2 to both sides:
0.7071 + 1.2 = vgsq<br>
1.9071 = vgsq