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Popular >

simplify (7-sqrt(2))^2

Solution

simplify

(7 - 2)^{2}

Solution

51 - 142

+1

Decimal Notation

31.20101 \dots

Solution steps

(7 - 2)^{2}

Apply Perfect Square Formula:

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

(7 - 2)^{2} = 7^{2} - 2 \cdot 72 + (2)^{2}

= 7^{2} - 2 \cdot 72 + (2)^{2}

7^{2} - 2 \cdot 72 + (2)^{2} = 51 - 142

= 51 - 142

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Frequently Asked Questions (FAQ)

What is (7-sqrt(2))^2 ?
The solution to (7-sqrt(2))^2 is 51-14sqrt(2)