Question

whats the correct simplification of (4x3y4z5)(5x4y5z3).

Answer 1

\[\huge (4x^3y^4z^5)(5x^4y^5z^3)\]

is this what you meant?

Answer 2

yea

Answer 3

\[\LARGE x^a\cdot x^b=x^{a+b}\] you're supposed to know this rule... do you know it ?

Answer 4

no...

Answer 5

well, you have to use it, solving this !

example:

\[\LARGE 3^4\cdot 3^7=3^{4+7}\]

the same with:

\[\LARGE z^2\cdot z^9=z^{2+9}\]

now you just take off bracket.. you don't need them !

and multiply by following these examples and you should end up with a solution which is...

\[\LARGE 20x^7z^8y^9\]

Answer 6

thank you

Answer 7

Glad to help :)