Question

If f(x) = -3x4 - 2x3 + 3x2, and g(x) = 3x4 - 4x3 + x2 then f(x) + g(x) =​

Answer 1

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1-+\|13

x= -------- or x1= - + 0.434259, x2=0

6

Explanation:

1. collect terms

2. factor the expression

3. divide both sides

4. separate into possible cases

5. solve the equation

6.Equation has 3 solution

Answer 2

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`f(x) = - 3 {x}^(4) - 2 {x}^(3) + 3 {x}^(2)`

`g(x) = 3 {x}^(4) - 4 {x}^(3) + {x}^(2)`

`f(x) + g(x) = - 3 {x}^(4) - 2 {x}^(3) + 3 {x}^(2) + 3 {x}^(4) - 4 {x}^(3) + {x}^(2) \\`

`f(x) + g(x) = - 3 {x}^(4) + 3 {x}^(4) - 2 {x}^(3) - 4 {x}^(3) + 3 {x}^(2) + {x}^(2) \\`

`f(x) + g(x) = - 6 {x}^(3) + 4 {x}^(2) \\`

Done....

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