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

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

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

simplify

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

3 x^{2} + 2 x - 5

Solution steps

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

Simplify

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

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

Group like terms

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

Add similar elements:

5 x - 3 x = 2 x

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

Add the numbers:

- 9 + 4 = - 5

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

5 \cdot 50

(x + 9) (x - 2) - 9 x - 6

4 x y - 6 x z + 12 x w

12 + 7

18 - 3