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Expand : (2a−b+c)
2
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Solution
verified
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(2a−b+c)
According to the equation ,
(a+b+c)
=a
+b
+c
+2ab+2bc+2ca
So we get,
Using the formula we can it write it as
=(2a)
+(−b)
+2(2a)(−b)+2(−b)c+2c(2a)
On further calculation we get,
=4a
−4ab−2bc+4ac
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Step-by-step explanation:
please mark me as BRAINLIST ☺️
[tex](a - b - c) ^{2} = {a}^{2} + {b}^{2} + {c}^{2} - 2ab + 2bc - 2ca.[/tex]
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Answer:
search-icon-header
Search for questions & chapters
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Question
Bookmark
Expand : (2a−b+c)
2
Medium
Solution
verified
Verified by Toppr
(2a−b+c)
2
According to the equation ,
(a+b+c)
2
=a
2
+b
2
+c
2
+2ab+2bc+2ca
So we get,
Using the formula we can it write it as
(2a−b+c)
2
=(2a)
2
+(−b)
2
+c
2
+2(2a)(−b)+2(−b)c+2c(2a)
On further calculation we get,
(2a−b+c)
2
=4a
2
+b
2
+c
2
−4ab−2bc+4ac
Was this answer helpful?
Step-by-step explanation:
please mark me as BRAINLIST ☺️
Verified answer
Answer:
[tex](a - b - c) ^{2} = {a}^{2} + {b}^{2} + {c}^{2} - 2ab + 2bc - 2ca.[/tex]