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Popular >

expand (q-1)^2

Solution

expand

(q - 1)^{2}

Solution

q^{2} - 2 q + 1

Solution steps

(q - 1)^{2}

Apply Perfect Square Formula:

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

(q - 1)^{2} = q^{2} - 2 q \cdot 1 + 1^{2}

= q^{2} - 2 q \cdot 1 + 1^{2}

Simplify

q^{2} - 2 q \cdot 1 + 1^{2} : q^{2} - 2 q + 1

= q^{2} - 2 q + 1

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Frequently Asked Questions (FAQ)

What is expand (q-1)^2 ?
The solution to expand (q-1)^2 is q^2-2q+1