plz answer me i have tomm exam
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=(x)(x^2+12x+x+12)+20(x+1)
=(x)(x+1)(x+12)+20(x+1)
=(x+1)[(x)(x+12)+20]
=(x+1)(x^2+12x+20)
=(x+1)(x+10)(x+2)
hope it helps!
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