What is (-3x^2+2x-4)+(4x^2+5x+9) ?

The solution to (-3x^2+2x-4)+(4x^2+5x+9) is x^2+7x+5

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simplify (-3x^2+2x-4)+(4x^2+5x+9)

simplify

(- 3 x^{2} + 2 x - 4) + (4 x^{2} + 5 x + 9)

x^{2} + 7 x + 5

Solution steps

(- 3 x^{2} + 2 x - 4) + (4 x^{2} + 5 x + 9)

Simplify

(- 3 x^{2} + 2 x - 4) + (4 x^{2} + 5 x + 9) : - 3 x^{2} + 2 x - 4 + 4 x^{2} + 5 x + 9

= - 3 x^{2} + 2 x - 4 + 4 x^{2} + 5 x + 9

Group like terms

= - 3 x^{2} + 4 x^{2} + 2 x + 5 x - 4 + 9

Add similar elements:

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

= x^{2} + 2 x + 5 x - 4 + 9

Add similar elements:

2 x + 5 x = 7 x

= x^{2} + 7 x - 4 + 9

Add the numbers:

- 4 + 9 = 5

= x^{2} + 7 x + 5

\frac{y - 3}{( y - 5 ) ^{2}} - \frac{y - 2}{y ^{2} - 4 y - 5}

\frac{5}{4 x + 8} - \frac{- 5}{- 3 x - 5}

\frac{3}{2} - \frac{4}{5}

16 x^{2} + 40 x y^{3} + 25 y^{6}

\frac{1}{2} \cdot \frac{3}{2}

What is (-3x^2+2x-4)+(4x^2+5x+9) ?
The solution to (-3x^2+2x-4)+(4x^2+5x+9) is x^2+7x+5