Question

Simplify
b) (2a – 3b)2 + (2a + 3b)2

Answer 1

Answer:

2(2a - 3b) + 2(2a + 3b)

= (4a - 6b) + (4a + 6b)

= 4a - 6b + 4a + 6b

= 8a

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Answer 2

Answer:

8a +18b is the answer

Step-by-step explanation:

$according \: to \: the \: answer \\ {(2a - 3b)}^{2} = {4a}^{2} + {9b}^{2} - 12ab \\ {(2a + 3b)}^{2} = {4a}^{2} + {9b}^{2} + 12ab \\ now \\ = {(2a - 3b)}^{2} + {(2a + 3b)}^{2} \\ \: \: \: \: on \: putting \: the \: values \\ = ( {4a}^{2} + {9b}^{2} - 12ab )+( {4a}^{2} + {9b}^{2} + 12ab) \\ = putting \: like \: terms \: together \\ = {4a}^{2} + {4a}^{2} + {9b}^{2} + {9b}^{2} + 12ab - 12ab \\ = {8a}^{2} + {18b}^{2}$

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