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Popular >

expand (8x^2-1)^2

Solution

expand

(8 x^{2} - 1)^{2}

Solution

64 x^{4} - 16 x^{2} + 1

Solution steps

(8 x^{2} - 1)^{2}

Apply Perfect Square Formula:

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

(8 x^{2} - 1)^{2} = (8 x^{2})^{2} - 2 \cdot 8 x^{2} \cdot 1 + 1^{2}

= (8 x^{2})^{2} - 2 \cdot 8 x^{2} \cdot 1 + 1^{2}

Simplify

(8 x^{2})^{2} - 2 \cdot 8 x^{2} \cdot 1 + 1^{2} : 64 x^{4} - 16 x^{2} + 1

= 64 x^{4} - 16 x^{2} + 1

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Frequently Asked Questions (FAQ)

What is expand (8x^2-1)^2 ?
The solution to expand (8x^2-1)^2 is 64x^4-16x^2+1