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Popular >

expand (-8a+9b)^2

Solution

expand

(- 8 a + 9 b)^{2}

Solution

64 a^{2} - 144 ab + 81 b^{2}

Solution steps

(- 8 a + 9 b)^{2}

Apply Perfect Square Formula:

(a + b)^{2} = a^{2} + 2 ab + b^{2}

(- 8 a + 9 b)^{2} = (- 8 a)^{2} + 2 (- 8 a) \cdot 9 b + (9 b)^{2}

= (- 8 a)^{2} + 2 (- 8 a) \cdot 9 b + (9 b)^{2}

Simplify

(- 8 a)^{2} + 2 (- 8 a) \cdot 9 b + (9 b)^{2} : 64 a^{2} - 144 ab + 81 b^{2}

= 64 a^{2} - 144 ab + 81 b^{2}

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Frequently Asked Questions (FAQ)

What is expand (-8a+9b)^2 ?
The solution to expand (-8a+9b)^2 is 64a^2-144ab+81b^2