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Expand it please (2/7z-3/5x)2
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Expand it please
(2/7z-3/5x)2

User Micronyks
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1 Answer

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Answer:
\bold{(4)/(49)z^2-(12)/(35)xz+(9)/(25)x^2}

Explanation:


\bigg((2)/(7)z-(3)/(5)x\bigg)\bigg((2)/(7)z-(3)/(5)x\bigg)\\\\\\=(2)/(7)z\bigg((2)/(7)z-(3)/(5)x\bigg)-(3)/(5)x\bigg((2)/(7)z-(3)/(5)x\bigg)\\\\\\=(4)/(49)z^2-(6)/(35)xz-(6)/(35)xz+(9)/(25)x^2\\\\\\=(4)/(49)z^2-(12)/(35)xz+(9)/(25)x^2

User Hugo Leao
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