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Popular >

expand (8x-9)^2

Solution

expand

(8 x - 9)^{2}

Solution

64 x^{2} - 144 x + 81

Solution steps

(8 x - 9)^{2}

Apply Perfect Square Formula:

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

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

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

Simplify

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

= 64 x^{2} - 144 x + 81

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Frequently Asked Questions (FAQ)

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