What is the value of the missing exponent? (Type only the numerical value of the missing exponent. Do not skip any spaces.) (-2x^3)?=-8x^9

Question

pokemon23 · Answer

Let me put my thinking cap on...

anonymous · Answer

What is the value of the missing exponent

pokemon23 · Answer

I really don't know...? I hate word problems

pokemon23 · Answer

Let me ask people from the math group

pokemon23 · Answer

hold I will get you help

anonymous · Answer

Okay thank you very much

pokemon23 · Answer

Ok Mr.Math is a genius in math

mr.math · Answer

Alright. We want to find a here
$$(-2x^3)^{a}=-8x^9 $$
$$(-2x^3)^a=-2^3(x^3)^3$$
$$ (-2x^3)^a=(-2x^3)^3$$

mr.math · Answer

What do you think a should be here?

mr.math · Answer

So both sides of the equation are equal.

pokemon23 · Answer

thanks Mr.Math

mr.math · Answer

You're very welcome!

anonymous · Answer

Thank you Mr.Math and Pokemon23 you've been very helpful.