### All GRE Subject Test: Math Resources

## Example Questions

### Example Question #92 : Algebra

**Possible Answers:**

**Correct answer:**

Take out i (the square root of -1) from both radicals, simplify, and then multiply. You are not allowed to first multiply the radicals and then simplify because the roots are negative.

### Example Question #21 : Operations On Complex Numbers

**Possible Answers:**

**Correct answer:**

Take out i (the square root of -1) from both radicals, simplify, and then multiply. You are not allowed to first multiply the radicals and then simplify because the roots are negative.

### Example Question #21 : Operations On Complex Numbers

**Possible Answers:**

**Correct answer:**

Take out i (the square root of -1) from both radicals and then multiply. You are not allowed to first multiply the radicals and then simplify because the roots are negative.

It might be difficult to tell that this simplifies but you should always check if the perfect squares (4, 9, 16, etc) divide into this number. 9 does divide into 495 so this simplifies further.

### Example Question #31 : Imaginary Numbers & Complex Functions

**Possible Answers:**

**Correct answer:**

Take out i (the square root of -1) from the radical, simplify each radical, then multiply.

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