Question

How do you combine 3x+2−2x2+x−2+2x−1?

Answer 1

First, use this rule of exponents to rewrite the right most term:

a

0

=

1

3

x

2

+

2

x

−

2

+

3

x

0

⇒

3

x

2

+

2

x

−

2

+

(

3

⋅

1

)

⇒

3

x

2

+

2

x

−

2

+

3

We can now combine the constants which are the only like terms:

3

x

2

+

2

x

+

(

−

2

+

3

)

3

x

2

+

2

x

+

1

Answer 2

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