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Popular >

expand (15-x)^2

Solution

expand

(15 - x)^{2}

Solution

225 - 30 x + x^{2}

Solution steps

(15 - x)^{2}

Apply Perfect Square Formula:

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

(15 - x)^{2} = 1 5^{2} - 2 \cdot 15 x + x^{2}

= 1 5^{2} - 2 \cdot 15 x + x^{2}

Simplify

1 5^{2} - 2 \cdot 15 x + x^{2} : 225 - 30 x + x^{2}

= 225 - 30 x + x^{2}

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Frequently Asked Questions (FAQ)

What is expand (15-x)^2 ?
The solution to expand (15-x)^2 is 225-30x+x^2