What is expand (7/3 a-b)(7/3 a+b) ?

The solution to expand (7/3 a-b)(7/3 a+b) is (-9b^2+49a^2)/9

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expand (7/3 a-b)(7/3 a+b)

expand

(\frac{7}{3} a - b) (\frac{7}{3} a + b)

\frac{- 9 b ^{2} + 49 a ^{2}}{9}

Solution steps

(\frac{7}{3} a - b) (\frac{7}{3} a + b)

Apply Difference of Two Squares

(\frac{7}{3} a - b) (\frac{7}{3} a + b) : \frac{- 9 b ^{2} + 49 a ^{2}}{9}

= \frac{- 9 b ^{2} + 49 a ^{2}}{9}

- \frac{2 ( 7 + 1939 )}{15}

\frac{( x + 9 ) ( x + 10 )}{x - 9}

19 sin (\frac{π}{6} (x + 3)) + 21

\frac{1}{2} + \frac{3}{92} (9 \cdot 0.3 - \frac{0. 3 ^{3}}{3})

\frac{3 s ^{4} - 12 s ^{3} + 4 s ^{2} + 11 s + 4}{s ( s ^{2} - 3 s - 2 ) ^{2}}

What is expand (7/3 a-b)(7/3 a+b) ?
The solution to expand (7/3 a-b)(7/3 a+b) is (-9b^2+49a^2)/9