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

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Answer 1 · 2017-05-20T04:45:36

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

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. $a^4+a^5=a^(4+5)=a^9$

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

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

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

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