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Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10

Grade 7 - Mathematics
4.3 Common Binomial Factor - II

Example:
Factorise (6a-b)(x+y) - (2a-3b)(x+y).
Solution:
Give that (6a-b)(x+y) - (2a-3b)(x+y)
= [(6a-b)-(2a-3b)](x+y)  {Since (x+y) is the greatest common factor}
= [6a-b-2a+3b](x+y)
= [4a+2b](x+y)
= 2[2a+b](x+y)

Directions: Solve the following problems. Also write at least ten examples of your own.
Q 1: Factorise (7x+3y)(2a-b) + (7x+3y)(3a+b).
(5a-2b(7x+3y)
-5a(7x+3y)
5a(7x+3y)

Q 2: Factorise (4a-b)(3a+2y) - (7a+b)(3a+2y).
(-3a-2b)(3a+2y)
(3a-2b)(3a+2y)
(3a)(3a+2y)

Q 3: Factorise (3x-2y)(3a+b) - (4x-3y)(3a+b).
(-x+y)(3a+b)
(x-y)(3a+b)
(x+y)(3a+b)

Q 4: Factorise (4x-3y)(2a+b) + (7x-3y)(2a+b).
(11x-6y)(2a+b)
(11x+6y)(2a+b)
(11x)(2a+b)

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Question 6: This question is available to subscribers only!


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