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!

Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10

Grade 7 - Mathematics
4.21 Find The Factors of Difference of Two Squares - II

Example: Factorise 4x2 - 9y2.
Solution: Given that 4x2- 9y2
= (2x)2 - (3y)2
This is the form of a2-b2 = (a+b)(a-b)
= (2x+3y)(2x-3y)
\Factors of 4x2 - 9y2 is (2x+3y)(2x-3y)

Directions: Find the factors of the given terms and show your work. Also write at least ten examples of your own.
Q 1: 16x2 - 225y2 = _____?
(4x+15y)(4x-15y)
(4x+15y)(4x+15y)
(4x-15y)(4x-15y)

Q 2: 9x2 - 16y2 = _____?
(3x+4y)(3x+4y)
(3x+4y)(3x-4y)
(3x-4y)(3x-4y)

Q 3: 16x2 - 81y2 = _____?
(4x+9y)(4x-9y)
(4x-9y)(4x-9y)
(4x+9y)(4x+9y)

Q 4: 25x2 - 16y2 = _____?
(5x+4y)(5x-4y)
(5x-4y)(5x-4y)
(5x+4y)(5x+4y)

Question 5: This question is available to subscribers only!

Question 6: This question is available to subscribers only!


Subscription to kwizNET Learning System 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
  • Choice of Math, English, Science, & Social Studies Curriculums
  • Excellent value for K-12 and ACT, SAT, & TOEFL Test Preparation
  • Get discount offers by sending an email to discounts@kwiznet.com

Quiz Timer