Subtraction of Algebraic Expression
Subtraction of Algebraic Expression
The difference between two like terms is a like term with a numerical coefficient equal to the difference between the numerical coefficients of the two like terms.
Note: Unlike terms cannot be subtracted the way like terms are subtracted.
Illustration: Subtract 7 from 3xy.
Solution: As both terms in the given expression are alike. Hence expression for the given statement is 3xy - 7.
Illustration: Subtract a-b from 3a-b+4
Solution: The difference = 3a - b + 4 - (a - b)
= 3a - b + 4 - a + b
Observe how we look (a - b) in brackets and look care of sign in opening the bracket. Rearranging the terms to put like terms together;
The difference = 2a + (0) b + 4 = 2a + 4
Subtraction of algebraic expressions is explained in each step as follows:
Subtract | |||
| Right Option : C | |||
| View Explanation | |||
Subtract: | |||
| Right Option : C | |||
| View Explanation | |||
Subtract: | |||
| Right Option : D | |||
| View Explanation | |||
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