x²+6x+9This can be factorised by SPLITTING THE MIDDLE TERM.x²+6x+9.=x²+3x+3x+9.=x(x+3)+3(x+3).=(x+3)(x+3).=(x+3)²The factors of x²+6x+9 are (x+3) and (x+3).It can ALSO be factorised by USING the IDENTITY (a+b)²=a²+2ab+b²
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