Maths-
General
Easy
Question
Subtract 12a +3b-c from the sum of 9a+4b-5c and 3a-6b+4c
Hint:
Addition of polynomials.
○ Always take like terms together while performing addition.
○ In addition to polynomials only terms with the same coefficient are added.
○ Subtraction of polynomials.
○ Always take like terms together while performing subtraction.
○ In addition to polynomials only terms with the same coefficient are subtracted.
The correct answer is: Hence, the answer is -5b.
Answer:
- Step by step explanation:
○ Given:
Sum of: 9a+4b-5c and 3a-6b+4c
Term to be subtracted: 12a +3b-c
○ Step 1:
○ addition:
(9a+4b-5c) + (3a-6b+4c)
9a + 4b - 5c + 3a - 6b + 4c
(9a + 3a) +(4b -6b) -(5c - 4c)
12a - 2b - c
○ Step 1:
○ Subtract 12a +3b-c from 12a - 2b - c:
(12a - 2b - c) - (12a +3b-c)
12a - 2b - c - 12a - 3b + c
(12a - 12a) -(2b + 3b) +(c-c)
-5b
- Final Answer:
Hence, the answer is -5b.
9a + 4b - 5c + 3a - 6b + 4c(9a + 3a) +(4b -6b) -(5c - 4c)12a - 2b - c○ Step 1:
○ Subtract 12a +3b-c from 12a - 2b - c:
(12a - 2b - c) - (12a +3b-c)12a - 2b - c - 12a - 3b + c (12a - 12a) -(2b + 3b) +(c-c) -5bRelated Questions to study
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