Q3 of 157 Page 22

Using the identity (x + a)(x + b) = x2 + (a + b)x + ab, find out the following products:

Given


Using (x + a)(x + b) = x2 + (a + b)x + ab




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3

Using the identity (x + a)(x + b) = x2 + (a + b)x + ab, find out the following products:

(2m + 3n) (2m + 4n)

 3

Using the identity (x + a)(x + b) = x2 + (a + b)x + ab, find out the following products:

(xy – 3) (xy – 2)

 3

Using the identity (x + a)(x + b) = x2 + (a + b)x + ab, find out the following products:

(2 + x) (2 – y)

 4

Find out the following squares by using the identities:

(p – q)2