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Old 12-10-2007   #1
soulsoundUK
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Default HW help plz

Squaring a binomial can be compared to finding the area of a square. Multiply the length of the side by itself. For example:
(a + b)^2 = a^2 + 2ab + b^2 or (a-b)^2 = a^2 + 2ab - b^2

Problem: The areas of four squares are listed below. Find the length of the side. Then find the perimeter.

(a) a^2 + 8a + 16

(b) a^2 -10a + 25

(c) 49a^2 -56a + 16

(d) 36a^4 -12a^2b^3 + b^6

Last edited by soulsoundUK; 12-10-2007 at 07:18 PM..