What is 7x^2-x-1+x^2+3x+3 ?

The solution to 7x^2-x-1+x^2+3x+3 is 8x^2+2x+2

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simplify 7x^2-x-1+x^2+3x+3

simplify

7 x^{2} - x - 1 + x^{2} + 3 x + 3

8 x^{2} + 2 x + 2

Solution steps

7 x^{2} - x - 1 + x^{2} + 3 x + 3

Group like terms

= 7 x^{2} + x^{2} - x + 3 x - 1 + 3

Add similar elements:

7 x^{2} + x^{2} = 8 x^{2}

= 8 x^{2} - x + 3 x - 1 + 3

Add similar elements:

- x + 3 x = 2 x

= 8 x^{2} + 2 x - 1 + 3

Add the numbers:

- 1 + 3 = 2

= 8 x^{2} + 2 x + 2

\frac{1}{x - 3 x}

x + 1 \times x

2 x + 2 x - 2 x

x \to \infty lim (\frac{x}{x})

lo g_{0.25} (2)