Class 8 Ke maths Chapter 9 k
four mula
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I am in 8th
what is your doubt
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Answer:
(a+b)²= a²+2ab+b²
(a-b)²=a²-2ab+b²
a²-b²=(a-b)(a+b)
(x+a)(x+b)= x²+(a+b)x+ab
Step-by-step explanation:
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