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Q: How do you simplify 5x plus 4 plus 9x?

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minus 4 plus 9 = 5, so 5x

-4

5x2 + 9x + 4 = (x + 1)(5x + 4).

As written, -5x + 9x = 4x 4x - 4 = 4(x - 1) If that's -5x2 + 9x - 4, that factors to -(x - 1)(5x - 4)

5x + 3 - 4 + 4x = 9x -1

(5x+4)(9x+9) FOIL First (5x*9x=45x**2) Outside (5x*9=45x) Inside (4*9x=36x) Last (4*9=36) 45x**2+45x+36x+36 45x**2+81x+36 9(5x**2+9x+4x)

9x + 5 = 5x + 179x + 5 - 5x = 179x - 5x = 4x5-4x=1717-5=1212 divided by 4 = 3x=3

It is -9x plus 5.

x=2/3

-5x2+9x-4 -5x2+9x+-4 Factors of -20 that add to equal 9 are -5 and-4 -5x2+5x+4x+-4 -5x(1x+1) + 4x(1+-1x)

9x-5x-2x = -4 2x = -4 x = -2

5x + 3 - 4 + 4x = 9x -1

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