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Q: What is 9x2 equals 10x plus 2?

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It is 4x^2 + 10x - 1

It is: 122-4*(9*-2) = 216

X equals 6

9x2 - 28x + 20 = 9x2 - 18x - 10x + 20 = 9x(x - 2) - 10(x - 2) = (9x - 10)*(x - 2)

6-3x = 5x-10x+2 4 = 8x-10x 4 = -2x x = -2

9x2 + 7x = 2 9x2 + 7x - 2 = 0 9x2 + 9x - 2x - 2 = 0 9x(x + 1) - 2(x + 1) = 0 (9x - 2)(x + 1) = 0 x ∈ {-1, 2/9}

-2-5

I x=5 and y=2, then (5x5)=25 plus (9x2)=18. 25+18=43

7x + 8 = 10x - 2 ∴ 3x = 10 ∴ x = 10/3

12x - 6 = 10x +2 12x - 10x = 2 + 6 2x = 8 x = 4

(x + 8)(x + 2)

x = 6 and 2/7

9x2 + 12x + 4 = 9x2 + 6x + 6x + 4 = 3x(3x + 2) + 2(3x + 2) = (3x + 2)(3x + 2) = (3x + 2)2

The discriminant is 900.

9x2=18

The solution is 1/2 or 0.5. This is how: 2x+1=7-10x 2x=6-10x 12x=6 x=1/2

x2 + 10x = 0 x2 + 10x + 25 = 25 (x + 5)2 = 25 x + 5 = +-5 x1 = 0 x2 =10

i think its x= 2 10x+2=7 then you have to get rid of the numbers by its self on the x's side so you would subtract 2 from 7 and get 10x=5 then you have to divide it and it becomes x=2

10x+5y = 25 5y = -10x+25 y = -2x+5 Therefore: the slope is -2 and the intercept is 5

Do a bit of rearrangement: 1: 10x + 2 = 8y; 2: 8y = 59 - 9x so 10x + 2 = 59 - 9x so 19x - 57 making x = 3 and y is therefore 4.

10x - 18 = 5x + 2 Add -5x + 18 to both sides of the equation, to get: 5x = 20, from which x = 4.

12x-3=2x+17 10x-3=17 10x=20 x=2

2x+8x-2=22 10x-2=22 10x+2=+2 10x=24 10/10=24/10 x=2.4

9x2 + 27 = 9 (x2 + 3)

2x + (10x - 4) = 20 2x + 10x - 4 = 20 12x - 4 = 20 12x = 24 x = 2