What is expand (7-sec(x))^2 ?

The solution to expand (7-sec(x))^2 is 49-14sec(x)+sec^2(x)

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expand (7-sec(x))^2

expand

(7 - sec (x))^{2}

49 - 14 sec (x) + sec^{2} (x)

Solution steps

(7 - sec (x))^{2}

Apply Perfect Square Formula:

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

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

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

Simplify

7^{2} - 2 \cdot 7 sec (x) + sec^{2} (x) : 49 - 14 sec (x) + sec^{2} (x)

= 49 - 14 sec (x) + sec^{2} (x)

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