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A(b-c)-(c-b)(b-c) factorise |
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Answer» ong>Answer: a/b+b/a+b/c+c/b+c/a+a/c+3 =(a^2+b^2) /AB+(b^2+c^2) /BC+(c^2+a^2) /ca+3 =(ca^2+cb^2+ab^2+ac^2+bc^2+ba^2+3abc) /ABC ={a^2(c+b+a-a) +b^2(c+a+b-b) +c^2(a+b+c-c) +3abc}/abc ={(a+b+c) (a^2+b^2+c^2) -(a^3+b^3+c^3–3abc) }/abc ={(a+b+c) (a^2+b^2+c^2-a^2-b^2-c^2+ab+bc+ca) })/abc ={(a+b+c) (ab+bc+ca) }/abc =(a+b+c) (1/c+1/a+1/b) =(a+b+c) (1/a+1/b+1/c)…… READ factorisation Step-by-step explanation: make me BRAINLIST |
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