Question

(6a+ 5b + 4c) ( 6a- 5b- 4c )

Answer 1

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Answer 2

question, we get = 120ab + 96ac .

Step-by-step explanation:

Given:

(6a+5b+4c)^2-(6a-5b-4c)^2(6a+5b+4c)

2

−(6a−5b−4c)

2

Simplify this

Solution:

By formula, (a + b)(a + b) = a^2 - b^2a

2

−b

2

Similarly,

(6a+5b+4c)^2 - (6a-5b-4c)^2 = (6a + 5b + 4c + 6a - 5b - 4c) (6a + 5b + 4c - 6a + 5b + 4c)(6a+5b+4c)

2

−(6a−5b−4c)

2

=(6a+5b+4c+6a−5b−4c)(6a+5b+4c−6a+5b+4c)

therefore, by simplifying as per the symbols

= 12a (10b + 8c)

= 120ab + 96ac

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