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Popular >

expand (3-x^2)^2

Solution

expand

(3 - x^{2})^{2}

Solution

9 - 6 x^{2} + x^{4}

Solution steps

(3 - x^{2})^{2}

Apply Perfect Square Formula:

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

(3 - x^{2})^{2} = 3^{2} - 2 \cdot 3 x^{2} + (x^{2})^{2}

= 3^{2} - 2 \cdot 3 x^{2} + (x^{2})^{2}

Simplify

3^{2} - 2 \cdot 3 x^{2} + (x^{2})^{2} : 9 - 6 x^{2} + x^{4}

= 9 - 6 x^{2} + x^{4}

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Frequently Asked Questions (FAQ)

What is expand (3-x^2)^2 ?
The solution to expand (3-x^2)^2 is 9-6x^2+x^4