What is (3x^2-6x+4)+(x^2-2x-1) ?

The solution to (3x^2-6x+4)+(x^2-2x-1) is 4x^2-8x+3

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simplify (3x^2-6x+4)+(x^2-2x-1)

simplify

(3 x^{2} - 6 x + 4) + (x^{2} - 2 x - 1)

4 x^{2} - 8 x + 3

Solution steps

(3 x^{2} - 6 x + 4) + (x^{2} - 2 x - 1)

Simplify

(3 x^{2} - 6 x + 4) + (x^{2} - 2 x - 1) : 3 x^{2} - 6 x + 4 + x^{2} - 2 x - 1

= 3 x^{2} - 6 x + 4 + x^{2} - 2 x - 1

Group like terms

= 3 x^{2} + x^{2} - 6 x - 2 x + 4 - 1

Add similar elements:

3 x^{2} + x^{2} = 4 x^{2}

= 4 x^{2} - 6 x - 2 x + 4 - 1

Add similar elements:

- 6 x - 2 x = - 8 x

= 4 x^{2} - 8 x + 4 - 1

Subtract the numbers:

4 - 1 = 3

= 4 x^{2} - 8 x + 3

- 3 + \frac{2}{3}

39 + 123

(3^{n}) (1 0^{n})

(- 8)^{- \frac{4}{3}}

a \cdot (- 1)

What is (3x^2-6x+4)+(x^2-2x-1) ?
The solution to (3x^2-6x+4)+(x^2-2x-1) is 4x^2-8x+3