1) a/√5 - x = 4a = 4√5 - 4x
2) b/√x + 3 = 4b = 4(√x + 3)
3) c/√(2x - 7) = √x - 4c = (√(2x - 7))(√x - 4) (Multiply both sides by √(2x - 7))
4) Ix + 3I2x
If x + 3 >= 0:Ix + 3I = x + 32x
If x + 3 < 0:Ix + 3I = -(x + 3)2x
1) a/√5 - x = 4
a = 4√5 - 4x
2) b/√x + 3 = 4
b = 4(√x + 3)
3) c/√(2x - 7) = √x - 4
c = (√(2x - 7))(√x - 4) (Multiply both sides by √(2x - 7))
4) Ix + 3I2x
If x + 3 >= 0:
Ix + 3I = x + 3
2x
If x + 3 < 0:
Ix + 3I = -(x + 3)
2x