Andrew factored the expression -30x^3-9x^2-3x as -5x(6x^2-2x-1). But when Melissa applied the distributive law and multiplied out -5(6x^2-2x-1), she got -30x^3+10x^2+5x; thus, Andrew's solution does not appear to check. Why is that. Please help Andrew to understand this better. Explain your reasoning and correctly factor the original expression, if possible. If the expression is prime, state so.

Question

anonymous · Answer

ijust want to know how can i write my answer as a comma separated

anonymous · Answer

i know the answer but i want to know how write it as a comma separated

anonymous · Answer

$$-30 x^3-9 x^2-3 x=-3 x \left(10 x^2+3 x+1\right) $$Andrew's version of factoring the LHS above is incorrect.

anonymous · Answer

Thank you. I am totally lost when it comes to algebra.

anonymous · Answer

Your are welcome.