Question

Choose one of the factors of x^3 + 343

Answers: x^2 – 14x + 49
x^2 + 7x + 49
None of the above
x – 7

Answer 1

x^(3)+343

Since both terms are perfect cubes, the binomial can be factored using the sum of cubes formula: a^(3)+b^(3)=(a+b)(a^(2)-ab+b^(2)).
(x+7)(x^(2)-7x+49)

b)

Answer 2

m i right

Answer 3

thanks for giving me medal