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Q: Factor X2 plus 8x equals -15?

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x2 + 8x + 15 = (x + 3)(x + 5)

x2 + 8x + 15 = (x + 3) (x + 5).

(x-3)(x-5) = 0

3 is a factor and dividing by 3 gives x + 15 = 8x

x2-8x+15 = (x-3)(x-5)

8x = 2x + 15 6x = 15 x = 15/6 = 2.5

Y-8x plus 9y equals 10y-8x.

X = 1

8x+39 = 2x-15 6x = -54 x = -9

8x plus 4y equals 5 is 8x + 4y = 5.

2x + 15 = 8x + 43 -6x = 28 x = -6 / 28 = -3 / 14

the empty set.

(8x + 5)(3x + 4)

x=2 1/7

No.

- 8x + 8x = 0 so question is meaningless.

(x - 6)(x - 2)

There is no maximum but te minimum is 15.

-8x - 10 - 20 = -8x - 30

(1, 1)

X= 1.567764363, -9.567764363

It can not be factored because its discriminant is less than zero

8x-7 plus 2x equals 6 plus 5x plus 2?

(x - 5)(x - 3)

x = 4 You have to add the 8x and 7x to get 15x and then divide 60 by 15 to get x by itself.