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1967 AHSME Problems/Problem 1

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Problem

(1+x^2)(1-x^3) equals:

\mathrm{ (A) \ } 1-x^5 \qquad \mathrm{(B) \ } 1-x^6 \qquad \mathrm{(C) \ } 1+x^2-x^3 \qquad \mathrm{(D) \ } 1+x^2-x^3-x^5 \&l...

Solution

By FOIL, (1+x^2)(1-x^3) = 1+x^2-x^3-x^5 \Longrightarrow \boxed{D}.

See also

1967 AHSME (Problems)
Preceded by
First question 		Followed by
Problem 2
1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 • 11 • 12 • 13 • 14 • 15 • 16 • 17 • 18 • 19 • 20 • 21 • 22 • 23 • 24 • 25 • 26 • 27 • 28 • 29 • 30
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