What is expand (7mn+2rs)(7mn-2rs) ?

The solution to expand (7mn+2rs)(7mn-2rs) is 49m^2n^2-4r^2s^2

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expand (7mn+2rs)(7mn-2rs)

expand

(7 mn + 2 rs) (7 mn - 2 rs)

49 m^{2} n^{2} - 4 r^{2} s^{2}

Solution steps

(7 mn + 2 rs) (7 mn - 2 rs)

Apply Difference of Two Squares

(7 mn + 2 rs) (7 mn - 2 rs) : 49 m^{2} n^{2} - 4 r^{2} s^{2}

= 49 m^{2} n^{2} - 4 r^{2} s^{2}

- 50 \div 5

(2 x + 11) (2 x - 6)

9 x^{2} - 4 x^{2}

(- 3 x^{4})^{2}

- \frac{11}{23} - \frac{7}{23}

What is expand (7mn+2rs)(7mn-2rs) ?
The solution to expand (7mn+2rs)(7mn-2rs) is 49m^2n^2-4r^2s^2