Question

in polynomial algebraic expressions all formules for 9th class​

Answer 1

Answer:

List Of Algebra Formulas For Class 9

( a + b)2 = a2 + 2ab + b2

( a − b)2 = a2 − 2ab + b2

( a + b)(a – b) = a2 – b2

( x + a)(x + b) = x2 + (a + b)x + ab.

( x + a)(x – b) = x2 + (a – b)x – ab.

( x – a)(x + b) = x2 + (b – a)x – ab.

( x–a)(x–b) = x2 – (a+b)x + ab.

( a + b)3 = a3 + b3 + 3ab(a + b)

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01-Dec-2020

Answer 2

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