(-4p+3k)²-(-5k+4p) (4p+5k)+24p == (3k-4p)²(-4p-5k)•(4p+5k)+24p=
=9k²-24kp+16p²-(16p²-25k²)+24p=
=9k²-24kp+16p²-16p²-25k²+24p=
=34k²-24kp+24kp
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(-4p+3k)²-(-5k+4p) (4p+5k)+24p =
= (3k-4p)²(-4p-5k)•(4p+5k)+24p=
=9k²-24kp+16p²-(16p²-25k²)+24p=
=9k²-24kp+16p²-16p²-25k²+24p=
=34k²-24kp+24kp