Question Video: Subtracting Algebraic Expressions | Nagwa Question Video: Subtracting Algebraic Expressions | Nagwa

# Question Video: Subtracting Algebraic Expressions Mathematics • First Year of Preparatory School

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Subtract 7๐ฆ + ๐งยฒ โ 3๐ฅยณ from 6๐ฅยณ + 5๐งยฒ โ 8๐ฆ.

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### Video Transcript

Subtract seven ๐ฆ plus ๐ง squared minus three ๐ฅ cubed from six ๐ฅ cubed plus five ๐ง squared minus eight ๐ฆ.

In order to subtract these two expressions, we need to group or collect the like terms. Firstly, we can group the ๐ฅ cubed terms. Six ๐ฅ cubed minus negative three ๐ฅ cubed, this is equal to nine ๐ฅ cubed as six minus negative three is equal to nine.

Next, we can group the ๐ฆ terms. Negative eight ๐ฆ minus seven ๐ฆ, this is equal to negative 15 ๐ฆ as negative eight minus seven is equal to negative 15.

Finally, we need to group the ๐ง or ๐ง squared terms. Five ๐ง squared minus ๐ง squared, this is equal to four ๐ง squared as five minus positive one is equal to four.

This means that our answer when we subtract seven ๐ฆ plus ๐ง squared minus three ๐ฅ cubed from six ๐ฅ cubed plus five ๐ง squared minus eight ๐ฆ is equal to nine ๐ฅ cubed minus 15 ๐ฆ plus four ๐ง squared.

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