Question

Choose one of the factors of x3 + 343.

x - 7

x2 - 14x + 49

x2 + 7x + 49

None of the above

Answer 1

hint: 343 = 7^3

Answer 2

so we have a sum of cubes

x^3 + 343 = x^3 + 7^3

Answer 3

ur hot k bye

Answer 4

in which you'll use the sum of cubes factoring formula

a^3 + b^3 = (a+b)(a^2 - ab + b^2)

Answer 5

thx

Answer 6

so its d

Answer 7

what are 'a' and b in this case?

Answer 8

@jim_thompson5910 a=x-7 b=x^2-14x+49...

Answer 9

@jim_thompson5910