Question

factorise by splitting the middle term c2 +25c+156​

Answer 1

Answer:

c2+25c+156

c2+13c+12c+156

c(c+13) +12(c+13)

so (c+13) (c+12) are two roots

Answer 2

Step-by-step explanation:

c2 + 25c + 156 = 0

c2 + 13c + 12c + 156 = 0

c ( c + 13 ) + 12 ( c + 13 ) = 0

( c+13)(c+12)=0

c+13=0

or

c+12=0

c= -13. or. c = -12