Trying to find the right answer to this..

(0.4p - 0.5q) 2 Using the identity (a - b) 2 = a 2 -2ab + b 2 , we have (0.4p - 0.5q) 2 = (0.4p) 2 - 2 (0.4p)(0.5q) + (0.5q) 2 = 0.16p 2 - 0.4pq + 0.25q 2

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Algebraic Expressions and Identities

Short Answer Type

111.

Find the following squares by using the identities.

(xy + 3z)²

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112.

Find the following squares by using the identities.

(6x² - 5y)²

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113.

Find the following squares by using the identities.

$space space space space space space space space space space space open parentheses 2 over 3 straight m space plus space 3 over 2 straight n close parentheses squared$