Practice 5.3

Front

Multiply: \( (4+\sqrt{2})(4-\sqrt{2}) \)

Back

14

Front

What is the conjugate of: \( 5+\sqrt{7} \)

Back

\( 5-\sqrt{7} \)

Front

What is the square root symbol called?

Back

Radical

Front

Multiply: \( (a+b)(a-b) \)

Back

\( a^2 - b^2 \)

Front

What is the value of \( \sqrt{16} \)?

Back

4

Front

What is the value of \( \sqrt{a^2} \)?

Back

|a|

Front

Simplify: \( \sqrt{50} \)

Back

5\sqrt{2}

Front

What is the product of two conjugates?

Back

The product is the difference of squares.

Front

Multiply: \( (x+3)(x-3) \)

Back

\( x^2 - 9 \)

Front

What is the conjugate of: \( 3+\sqrt{5} \)

Back

\( 3-\sqrt{5} \)