Name: ___________________


kwizNET Subscribers, please login to turn off the Ads!
Email us to get an instant 20% discount on highly effective K-12 Math & English kwizNET Programs!

Grade 8 - Mathematics
7.27 Special Products: a3+b3 = (a+b)(a2-ab+b2

Formula : a3+b3 = (a+b)(a2-ab+b2)

Expand x3+27y3.
Using above formula, Let a3 = x3 and b3 = 27y3 in the above equation
a3+b3& = x3+27y3
= (x+3y)(x2-3xy+9y2)

Directions: Solve the following problems. Also write at least ten examples of your own.
Q 1: Expand x3+8y3.

Q 2: Expand 8x3+125y3.

Q 3: Expand 27x3+125y3.

Q 4: Expand 27x3+8y3.

Question 5: This question is available to subscribers only!

Question 6: This question is available to subscribers only!

Subscription to kwizNET Learning System costs less than $1 per month & offers the following benefits:

  • Unrestricted access to grade appropriate lessons, quizzes, & printable worksheets
  • Instant scoring of online quizzes
  • Progress tracking and award certificates to keep your student motivated
  • Unlimited practice with auto-generated 'WIZ MATH' quizzes
  • Child-friendly website with no advertisements

© 2003-2007 kwizNET Learning System LLC. All rights reserved. This material may not be reproduced, displayed, modified or distributed without the express prior written permission of the copyright holder. For permission, contact
For unlimited printable worksheets & more, go to