4. Find the sum of the following us (a) a2 + 2ab + b , 2 - 2ab- 2-.-
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Answer:
2
Step-by-step explanation:
We have to simply add the given terms.
( {a}^{2} + 2ab + {b}^{2}) + ( {a}^{2} - 2ab - {b}^{2} ) + ( {a}^{2} + {b}^{2} )(a
2
+2ab+b
2
)+(a
2
−2ab−b
2
)+(a
2
+b
2
)
Now let us open the brackets
{a}^{2} + 2ab + {b}^{2} + {a}^{2} - 2ab - {b}^{2} + {a}^{2} + {b}^{2}a
2
+2ab+b
2
+a
2
−2ab−b
2
+a
2
+b
2
Let us now arrange the terms on the basis of same variables.
{a}^{2} + {a}^{2} + {a}^{2} + {b}^{2} - {b}^{2} + {b}^{2} + 2ab - 2aba
2
+a
2
+a
2
+b
2
−b
2
+b
2
+2ab−2ab
{3a}^{2} + {b}^{2} + 03a
2
+b
2
+0
{3a}^{2} + {b}^{2}3a
2
+b
2
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