x^2+10x+25y^2+14y+492z^2+12z+18x^2-8x+16a^2-12a+363b^2-6b+36

3个回答

  • x^2+10x+25

    =(x+5)^2

    y^2+14y+49

    =(y+7)^2

    2z^2+12z+18

    =2(z^2+6z+9)

    =2(z+3)^2

    x^2-8x+16

    =(x-4)^2

    a^2-12a+36

    =(a-6)^2

    3b^2-6b+3

    =3(b^2-2b+1)

    =3(b-1)^2

    6p^4-24q^2

    =6(p^4-4q^2)

    =6(p^2+2q)(p^2-2q)

    2p^4-18p^2q^2

    =2p^2(p^2-9q^2)

    =2p^2(p+3q)(p-3q)

    x^4y^2-4x^2y^4

    =x^2y^2(x^2-4y^2)

    =x^2y^2(x+2y)(x-2y)

    32xy^4-2x^5

    =2x(16y^4-x^4)

    =2x(4y^2+x^2)(4y^2-x^2)

    =2x(4y^2+x^2)(2y+x)(2y-x)

    642^4-4b^4

    =(642^2+2b^2)(642^2-2b^2)

    =16(321^2+b^2)(321^2-b^2)

    =16(103042+b^2)(321+b)(321-b)