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26. If we add, 7xy + 5yz – 3zx,
4yz + 9zx – 4y and -3×2 + 5x –
2xy, then the answer is:
O A. 5xy + 9y2 +3zx

1 thought on “1<br />26. If we add, 7xy + 5yz – 3zx,<br />4yz + 9zx – 4y and -3×2 + 5x –<br />2xy, then the answer is:<br />O A. 5xy + 9y2 +3zx”

1. Answer:

   answer is A

   Step-by-step explanation:

   Answer:

   \begin{gathered} \\ Add \: 7xy + 5yz – 3zx , 4yz + 9zx – 4y and – 3xz + 5x – 2xy . \\ < /p > < p > < /p > < p > \\ 7x + 5yz – 3zx + (4yz + 9zx – 4y) + (- 3xz + 5x – 2xy) \\ < /p > < p > < /p > < p > \\ 7xy + 5yz – 3zx + 4yz + 9zx – 4y – 3xz + 5x – 2xy \\ < /p > < p > < /p > < p > \\ By rearranging :- < /p > < p > \\ < /p > < p > 7xy – 2xy + 5yz + 4yz – 3zx + 9zx – 3xz – 4y + 5x \\ < /p > < p > < /p > < p > \\ 5xy + 9yz + 3zx – 4y + 5x\end{gathered}

   Add7xy+5yz−3zx,4yz+9zx−4yand−3xz+5x−2xy.

   </p><p></p><p>

   7x+5yz−3zx+(4yz+9zx−4y)+(−3xz+5x−2xy)

   </p><p></p><p>

   7xy+5yz−3zx+4yz+9zx−4y−3xz+5x−2xy

   </p><p></p><p>

   Byrearranging:−</p><p>

   </p><p>7xy−2xy+5yz+4yz−3zx+9zx−3xz−4y+5x

   </p><p></p><p>

   5xy+9yz+3zx−4y+5x

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