What is expand (2mn^3+7)(2mn^3-7) ?

The solution to expand (2mn^3+7)(2mn^3-7) is 4m^2n^6-49

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expand (2mn^3+7)(2mn^3-7)

expand

(2 m n^{3} + 7) (2 m n^{3} - 7)

4 m^{2} n^{6} - 49

Solution steps

(2 m n^{3} + 7) (2 m n^{3} - 7)

Apply Difference of Two Squares

(2 m n^{3} + 7) (2 m n^{3} - 7) : 4 m^{2} n^{6} - 49

= 4 m^{2} n^{6} - 49

3^{2} x 3^{2}

- 2 (4)

(6 - y)^{2}

(4^{3})^{3}

- 10 b + b

What is expand (2mn^3+7)(2mn^3-7) ?
The solution to expand (2mn^3+7)(2mn^3-7) is 4m^2n^6-49