Browse · harp

smc

algebra intermediate

Problem

(1 + x^{2}) (1 - x^{3})

equals

(A)

1 - x^{5}

(B)

1 - x^{6}

(C)

1 + x^{2} - x^{3}

(D)

1 + x^{2} - x^{3} - x^{5}

Solution

We multiply:

(1 + x^{2}) (1 - x^{3}) = 1 - x^{3} + x^{2} - x^{5}

. Thus the answer is

1 + x^{2} - x^{3} - x^{5}

.

Final answer

D