Tolong bantu nomor 21, 23, 25, 27 yaa mksh

21.) 6p³-5p²21p (jawaban :D)

23.)(a+b)(c+d) = a(c+d) + b(c+d) (jawaban :C)

25.) (x+3)(x-2) = x(x-2) + 3(x-2)
= x²-2x + 3x - 6
= x² + x - 6 (jawaban:A)

27.) (2x+1)(x-3) = ax² + bx + c
2x(x-3) + 1(x-3) = ax² + bx + c
2x²-6x + x -3 = ax² + bx + c
2x² -5x - 3 = ax² + bx + c
a, b, c = 2, -5, -3 (jawaban:B)