Give three standard identities ( Algebric Expressions )
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1) (a + b)^2 = a^2 + 2ab + b^2
2) a^2 – b^2 = (a + b)(a – b)
3) (x + a)(x + b) = x^2 + (a + b) x + ab
Step-by-step explanation:
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The standard algebraic identities are:
(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
(a + b + c)2 = a2 + b2 + c2 + 2ab + 2bc + 2ca
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