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:
Simplify : -b from 7b | |||
| Right Option : A | |||
| View Explanation | |||
Subtract (12xy + 3y) from (20xy - 8y+ x) | |||
| Right Option : B | |||
| View Explanation | |||
What should be subtracted from : 2a + 8b + 10 to get -3a +7b + 16 ? | |||
| Right Option : A | |||
| View Explanation | |||
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10thAbhyas institute is one of the best coaching institute in the vicinity of Ambala cantt.The institute provides good and quality education to the students.The teachers are well experienced and are very helpful in solving the problems. The major advantages of the institute is extra classes for weak...
