Question

(-7by5)xy²z×(13by3x²yz²)
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Answer 1

Answer:

$( - 7 \times 5)xy {}^{2} z \times (13 \times 3x {}^{2} yz { }^{2} ) \\ = taking \: like \: terms \\ = ( - 7 \times 5 \times 13) \times (xy {}^{2} z \times 3x {}^{2}yz {}^{2} ) \\ = - 455 \times xy {}^{2} z \times 3x {}^{2} yz { }^{2} \\ we \: cannot \: simplify \: anymore \: because \: there \: are \: no \: like \: terms$

hope this will help u