Question

factor completely x^3-343

Answer 1

its the difference of 2 cubes

so

\[a^3 - b^3 = (a - b)(a^2 + ab + b^2)\]

you just need to find b.... just take the cubr root of 343

Answer 2

Thanks so it would be (x-7)(x^2+7x+49)?

Answer 3

thats it... well done

Answer 4

Thanks!