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Popular >

expand (3-2^a)^2

Solution

expand

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

Solution

9 - 6 \cdot 2^{a} + 4^{a}

Solution steps

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

Apply Perfect Square Formula:

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

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

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

Simplify

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

= 9 - 6 \cdot 2^{a} + 4^{a}

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Frequently Asked Questions (FAQ)

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