Find the Least Common Denominator of Rational Expressions

Perform the operation

• A

• B

• C

• D

Find the LCD of these fractions.

• (x+2)(x-2)

• (x+2)

• (x-2)

• (x²-4)(x+2)

Find the LCD of these fractions.

• (x+2)(x-2)

• (x+2)(x+1)

• (x+2)(x-2)(x+1)

• (x-2)(x+1)

Find the LCD of the following rational numbers and \(\frac{2}{5}\) and \(\frac{3}{10}\)

• 10

• 5

• 15

• 20

• 12

• 6

• 24

• 4

• (x+8)(x-3)

• 8x(x+2)

• (x²+3x+24)

What is the least common multiple of x²-16 and x²+4x-32? HINT: Think least common denominator!

• (x + 4)(x – 4)(x + 8)

• (x-4)2 (x+8)

• (x + 4)(x – 4)

• (x - 4)(x-4)2(x + 8)

What is the least common multiple of 3x² - 27 and 5x²+10x-75? HINT: Think least common denominator!

• 3(x+3)(x-3)(x+5)

• 15(x+3)(x+3)(x+5)

• 15(x+3)(x-3)(x+5)

• 5(x+3)(x-3)(x+5)

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• A
• B
• C
• D