Question

Help me pls :)
it is for revision but i dont understand it...

Answer 1

`\textbf{a)}\\\\3x^2 y^4 \cdot 2x^6 y \\\\=6x^(2+6) \cdot y^(4+1)\\\\=6x^8 y^5\\\\\textbf{b)}\\\\xz^3 \cdot 4x^4 z^5\\\\=4x^(4+1) \cdot z^(3+5)\\\\=4x^5 z^8\\\\\textbf{c)}\\\\4a^3b^2 \cdot 3a^6 b^5 \\\\=12a^(3+6)\cdot b^(2+5)\\\\=12a^9b^7\\\\\textbf{d)}\\\\6s^5t\cdot s^4 t^2\\\\=6s^(5+4) \cdot t^(2+1)\\\\=6s^9t^3`