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yan [13]
3 years ago
13

What is x3+3x2-x-3 factor by grouping

Mathematics
2 answers:
jasenka [17]3 years ago
5 0
x^3+3x^2-x-3

x^2(x+3)-x-3

x^2(x+3)-(x+3)

\boxed{\boxed{(x+3)(x^2-1)}}
stich3 [128]3 years ago
4 0
X3 + 3x2-x-3=0
x2(x+3)-(x+3)=0
(x2-1)(x+3)=0
x2-1=0
(x-1)(x+1)=0
x=1
x=-1

x+3=0
x=-3
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