Tolong di jawab pake cara yh kakak;’)

25. 8x²+14xy-15y² = 18x²+20xy-6xy-15y²
= 4x(2x+5)-3y(2x+5y)
= (2x+5y)(4x-3y) C.

26. D.
27. 2x²+3x-9/x²-9 = 2x²+6x-3x-9/(x-3)(x+3)
= 2x-3 per x-3 A.
28. -3p/4 + 5p+2/8 = -6p+5p+2/8
= -p+2 per 8
29. 5m/m²-n² – 3/m+n = 5m-3(m-n)/(m-n)(m+n)
= 5m-3m+3n/m²-n²
= 2m+3n per m²-n² D.

#Semoga Membantu