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papercrane
papercrane asked in Science & MathematicsMathematics · 1 decade ago

Equation Help for Maths Homework Please?

how can I prove that

(x+1)^5 = 1x^5 + 5x^4 + 10x^3 + 10x^2 + 5x + 1

Please show all working.

Thanks in advance.

1 Answer

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  • Jr.
    1 decade ago
    Favourite answer

    Using F.O.I.L., which stands for First, Outer, Inner, and Last distribute the contents of (x+1)^5:

    [(x+1) * (x+1)] * [(x+1) * (x+1)] * (x+1) = 1x^5 + 5x^4 + 10x^3 + 10x^2 + 5x + 1

    Source(s): School
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