What is the product of (x2–9x)/(x+5) and (3x+15)/(x–9)?
3x
9x
5/x
3/x
x2−9xx+5×3x+15x−9 x(x−9)x+5×3(x+5)x−9 =3x
40+3x−x2=?(a) (x+5)(x−8)(b) (5−x)(8+x)(c) (5+x)(8−x)(d) (5−x)(8−x)
Find the factors of x2+8x+15 by splitting the middle term.
x2−8x+15x2−9x+18=x−5x−6