What is 5x+2+x^2-4+x^2-5x+6 ?

The solution to 5x+2+x^2-4+x^2-5x+6 is 2x^2+4

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simplify 5x+2+x^2-4+x^2-5x+6

simplify

5 x + 2 + x^{2} - 4 + x^{2} - 5 x + 6

2 x^{2} + 4

Solution steps

5 x + 2 + x^{2} - 4 + x^{2} - 5 x + 6

Group like terms

= x^{2} + x^{2} + 5 x - 5 x + 2 - 4 + 6

Add similar elements:

x^{2} + x^{2} = 2 x^{2}

= 2 x^{2} + 5 x - 5 x + 2 - 4 + 6

Add similar elements:

5 x - 5 x = 0

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

Add the numbers:

2 - 4 + 6 = 4

= 2 x^{2} + 4

2 lo g_{10} (10 0^{- 3})

\frac{3}{a} + \frac{2}{5 a - 3} + \frac{1 - 85 a}{25 a ^{2} - 9}

\frac{24}{27}

8 + (- 6)

- 2!