Answer:
x = sqrt((7 z)/2 + 2) or x = -sqrt((7 z)/2 + 2)
Step-by-step explanation:
Solve for x:
-4 + 2 x^2 - 7 z = 0
Add 7 z + 4 to both sides:
2 x^2 = 7 z + 4
Divide both sides by 2:
x^2 = (7 z)/2 + 2
Take the square root of both sides:
Answer: x = sqrt((7 z)/2 + 2) or x = -sqrt((7 z)/2 + 2)
