How do you simplify #(5rs-1t^3)(-3r^2st)#?

1 Answer
SoySoy4444
May 20, 2017

#-15r^3s^2t+3r^2st^4#

Explanation:

Did you mean expanding the brackets? Or if you actually meant simplifying, please contact me.

You have to multiply each term in the first bracket by the second bracket.

Note : To multiply 2 terms with powers, add the powers. For e.g. #a^4+a^5=a^(4+5)=a^9#

#5rs*-3r^2st=-15r^3s^2t#

#-1t^3=-t^3#
#-t^3*-3r^2st=3r^2st^4#

#-15r^3s^2t+3r^2st^4#

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