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Byju's Answer
Standard VII
Mathematics
(x + a)(x +b)= x^2 + x(a+ b) + ab
Factories : ...
Question
Factories :
X
2
−
X
+
1
Open in App
Solution
X
2
−
X
+
1
add and subtract X
X
2
−
X
+
1
−
X
+
X
(
X
2
−
2
X
+
1
)
+
X
(
X
−
1
)
2
+
X
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