gianna20
Answered

How do o solve both of these?? With work please!

How do o solve both of these?? With work please! class=

Verified Answer :

anthony12341
  1. 3n^3+3n^2+5n+5
    (3n^3+2n^2)+(5n+5)
    3n^2(n+1)+5(n+1)
    (n+1)(3n^2+5)
    n+1=0 and 3n^2+5=0
    so n=-1, sqrt(5/3)
    2.2x^2+2x-4
    2(x^2+x+2)
    2(x-1)(x+2)
    2(x-1)=0 and x+2=0
    x=1 and x=-2


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