y^2-7y+12因式分解

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y^2-7y+12因式分解y^2-7y+12因式分解y^2-7y+12因式分解y^2-7y+12=(y-3)(y-4)y^2-7y+12=y^2-3y-4y+12=y(y-3)-4(y-3)=(y-3

y^2-7y+12因式分解
y^2-7y+12因式分解

y^2-7y+12因式分解
y^2-7y+12
=(y-3)(y-4)

y^2-7y+12=y^2-3y-4y+12
=y(y-3)-4(y-3)
=(y-3)(y-4)

y^2-7y+12
=(y-4)(y-3)

y^2-7y+12
=(y-3)(y-4)

y^2-7y+12=(y-4)*(y-3)