(x+1)(x+3)+1因式分解急

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(x+1)(x+3)+1因式分解急(x+1)(x+3)+1因式分解急(x+1)(x+3)+1因式分解急原式=(x+1)(x+3)+1=(x^2+4x+3)+1=x^2+4x+4=(x+2)^2记得采纳

(x+1)(x+3)+1因式分解急
(x+1)(x+3)+1因式分解

(x+1)(x+3)+1因式分解急
原式=(x+1)(x+3)+1
=(x^2+4x+3)+1
=x^2+4x+4
=(x+2)^2
记得采纳哟亲

(x+1)(x+3)+1
=x^2+3x+x+3+1
=x^2+4x+4
=(x+2)^2

=x^2+4x+3+1
=x^2+4x+4
=(x+2)^2

(x+1)(x+3)+1
=x^2+4x+3+1
=(x+2)^2