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Popular >

expand (3-a)^2

Solution

expand

(3 - a)^{2}

Solution

9 - 6 a + a^{2}

Solution steps

(3 - a)^{2}

Apply Perfect Square Formula:

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

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

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

Simplify

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

= 9 - 6 a + a^{2}

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Frequently Asked Questions (FAQ)

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