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Popular >

expand (7x-9)(7x+9)

Solution

expand

(7 x - 9) (7 x + 9)

Solution

49 x^{2} - 81

Solution steps

(7 x - 9) (7 x + 9)

Apply Difference of Two Squares

(7 x - 9) (7 x + 9) : 49 x^{2} - 81

= 49 x^{2} - 81

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Frequently Asked Questions (FAQ)

What is expand (7x-9)(7x+9) ?
The solution to expand (7x-9)(7x+9) is 49x^2-81