Question

Solve the given question in attachment...​

Answer 1

$\huge\mathfrak\pink{Answer}$

=14(3y-5z)³+7(3y-5z)²

={7(3y-5z)²}{2(3y-5z) +7}

={7(9y²+25z²-30zy)}{6y-10z+7}

=(63y²+175z²-210zy) (6y-10z+7)

Answer 2

Answer:

63y -105z.

Step-by-step explanation:

= 42y-70z + 21y - 35z

= 42y + 21y - 70z - 35z

= 63y - 105z ans.

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