Add or Subtract

question 54

Multiple Choice

Add or subtract. Then simplify. If a denominator has two or more factors (other than monomials) , leave it in factored form. Express the answer using the denominator of the first fraction when applicable.
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Definitions:

Astigmatism

Astigmatism is a common vision condition caused by an irregularly shaped cornea or lens, leading to blurred or distorted vision.

Rod Photoreceptors

Cells in the retina of the eye responsible for vision in low light conditions.

Ocular Pressure

The pressure inside the eye, formally known as intraocular pressure, which is critical in maintaining the eye's shape and proper function.

Strabismus

A condition in which the eyes do not properly align with each other when looking at an object, commonly referred to as crossed eyes.