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Popular >

expand (w-7)^2

Solution

expand

(w - 7)^{2}

Solution

w^{2} - 14 w + 49

Solution steps

(w - 7)^{2}

Apply Perfect Square Formula:

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

(w - 7)^{2} = w^{2} - 2 w \cdot 7 + 7^{2}

= w^{2} - 2 w \cdot 7 + 7^{2}

Simplify

w^{2} - 2 w \cdot 7 + 7^{2} : w^{2} - 14 w + 49

= w^{2} - 14 w + 49

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Frequently Asked Questions (FAQ)

What is expand (w-7)^2 ?
The solution to expand (w-7)^2 is w^2-14w+49