Question

Re write with out parentheses, and simplify (2y5z4-9z6)(-3y³z) ​

Answer 1

`\Large\boxed{\sf -6y^8z^5+27y^3z^7}\\\\\\\displaystyle \sf (2y^5z^4-9z^6)(-3y^3 z)\\\\Expand\ brackets\\\\(-3y^3 z)(2y^5z^4)+(-3y^3 z)(-9z^6)\\\\Apply \ law\ of\ indices\\\\-6y^(3+5)z^(1+4)+27y^3z^(1+6)\\\\-6y^8z^5+27y^3z^7`

Answer 2

(2y5z^4-9z^6)(-3y³z)
(10yz^4 - 9z^6)(-3y^3z)
-30y^4z^5 + 27y^3z^7