x²+3x+2+ax+2a factorise
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Step-by-step explanation:x²+3x+2+ax+2a
= x²+(2+1)x+2+ax+2a
= x²+2x+x+2+ax+2a
= x(x+2)+1(x+2)+a(x+2)
ans= (x+2)(x+a+1)
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