Question

Решите примеры, сократите дробь: 2y^2+7y+3//y^2-9, p^2-11p+10//20+8p-p^2, 3x^2+16x-12//10-13x-3x^2

Answer 1

1)d=49-24=25
y1=(-7+5)/4=-0.5
y2=(-7-5)/4=-3
2)d=121-40=81
p1=(11+9)/2=10
p2=(11-9)/2=1
3)d=64+80=144
p1=(8+12)/2=10
p2=(8-12)/2=-2
4)d=256+144=400
x1=(-16+20)/6=-2/3
x2=(-16-20)/6=-6
5)d=169+120=289
x1=(13+17)/6=5
x2=(13-17)/6=-2/3
1)(y+0.5)(y+3)//(y+3)(y-3)=(y+0.5)//(y+3)
2)(p-10)(p-1)//(p-10)(p+2)=(p-1)//(p+2)
3)(x+2/3)(x+6)//(x-5)(x+2/3)=(x+6)//(x-5)

Answer 2

1)(y+0.5)(y+3)//(y+3)(y-3)=(y+0.5)//(y+3)

Answer 3

2)(p-10)(p-1)//(p-10)(p+2)=(p-1)//(p+2)

Answer 4

${(2 y+1)/(y-3), -(p-1)/(p+2), -(x+6)/(x+5)}$