write 30 formula in 8 standard maths book
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Maths Formulas For Class 8: Algebraic Identity
(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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(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)
Step-by-step explanation:
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