Question

数学题。急求

数学题。急求A. 3y2+8y-3

B. 3y2+6y+3

C. 5y2+28y+15

D. 2y2+22y+60

E. 3y2+y-10

F. 5y2-8y+3

G. 7y2-23y+6

H. 7y2+78y+11

I. 5y2+23y+12

Answer 1

A. 3y2+8y-3=(y+3)(3y-1)

B. 3y2+6y+3=3(y+1)²

C. 5y2+28y+15=(y+5)(5y+3)

D. 2y2+22y+60=2(y+1)(y+20)

E. 3y2+y-10=(y+2)(3y-5)

F. 5y2-8y+3=(y-1)(5y-3)

G. 7y2-23y+6=(y-3)(7y-2)

H. 7y2+78y+11=(y+11)(7y+1)

I. 5y2+23y+12=(y+4)(5y+3)