What is expand (5a^2+7b)(7a-5b) ?

The solution to expand (5a^2+7b)(7a-5b) is 35a^3-25a^2b+49ab-35b^2

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expand (5a^2+7b)(7a-5b)

expand

(5 a^{2} + 7 b) (7 a - 5 b)

35 a^{3} - 25 a^{2} b + 49 ab - 35 b^{2}

Solution steps

(5 a^{2} + 7 b) (7 a - 5 b)

Apply FOIL method

(5 a^{2} + 7 b) (7 a - 5 b) : 35 a^{3} - 25 a^{2} b + 49 ab - 35 b^{2}

= 35 a^{3} - 25 a^{2} b + 49 ab - 35 b^{2}

(4 x^{2} - 1) (6 x^{2} - 9)

3 a^{3} b^{4} + 9 a b^{3} + 12 a b^{4}

- 54 k^{4} + 2 k

\frac{x ^{9} ( 2 x ) ^{4}}{x ^{3}}

What is expand (5a^2+7b)(7a-5b) ?
The solution to expand (5a^2+7b)(7a-5b) is 35a^3-25a^2b+49ab-35b^2