What is expand (3x+7y)(3x-7y) ?

The solution to expand (3x+7y)(3x-7y) is 9x^2-49y^2

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expand (3x+7y)(3x-7y)

expand

(3 x + 7 y) (3 x - 7 y)

9 x^{2} - 49 y^{2}

Solution steps

(3 x + 7 y) (3 x - 7 y)

Apply Difference of Two Squares

(3 x + 7 y) (3 x - 7 y) : 9 x^{2} - 49 y^{2}

= 9 x^{2} - 49 y^{2}

(x^{3} + 3 y) (x^{3} + 5 y)

4. 5^{2} + 3. 5^{2}

(2 x + 7) (x - 2)

- 5 \cdot - 45

(2 x - 3) (2 x - 3)

What is expand (3x+7y)(3x-7y) ?
The solution to expand (3x+7y)(3x-7y) is 9x^2-49y^2