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Popular >

expand (3-e^x)^2

Solution

expand

(3 - e^{x})^{2}

Solution

9 - 6 e^{x} + e^{2 x}

Solution steps

(3 - e^{x})^{2}

Apply Perfect Square Formula:

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

a = 3, b = e^{x}

= 3^{2} - 2 \cdot 3 e^{x} + (e^{x})^{2}

Simplify

3^{2} - 2 \cdot 3 e^{x} + (e^{x})^{2} : 9 - 6 e^{x} + e^{2 x}

= 9 - 6 e^{x} + e^{2 x}

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Frequently Asked Questions (FAQ)

What is expand (3-e^x)^2 ?
The solution to expand (3-e^x)^2 is 9-6e^x+e^{2x}