Q: 4x plus 12x plus 5

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5/4x+7/12x is the same as 15/12x+7/12x = 21/12x

(2x - 1)(6x + 5)

x=5

4x² - 12x + 9 = 5 → 4x² - 12x + 4 = 0 → x² - 3x + 1 = 0 → x = (-(-3) ±√((-3)² - 4×1×1))/(2×1) → x = (3 ±√5)/2 → x = (3 + √5)/2 or x = (3 - √5)/2

The factors of 5 are 1 and 5. 12 = 2 x 5 + 2 x 1, therefore: 4x2 +12x +5 = (2x + 1)(2x + 5)

If you mean -12x+3y = 15 then y = 4x+5

3x-8+5x+39+4x+51 = x(3+5+4) + -8 + 39 + 51 = 12x +82

y = 5 - 2x so 4x + 6(5 - 2x) = -2 ie 4x + 30 - 12x = -2 Subtract 30 from each side: 4x - 12x = -32 ie -8x = -32 so x = 4 and y = -3

-3

4x2 + 12x + 5 = (2x + 1)(2x + 5).

24x^3 + 72x2 + 30x = 6x*(4x^2 + 12x + 5)=6x*(2x + 1)*(2x + 5)

Are you trying to find x? If so, get all x's to one side, 32=8x-8, then get x alone... 40= 8x then divide by 8... 5=x So at x=5, 4x+32=12x-8

x2+12x+5 = 3 x2+12x+5-3 = 0 x2+12x+2 = 0

-8X + 7 = 4X - 5 add -8X to both sides 7 = 12X - 5 add 5 to each side 12 = 12X divide each side by 12 1 = X check -8(1) + 7 = 4(1) - 5 -1 = -1 checks

(4x+5)(4x+5)

16x2 + 40x + 25 = 16x2 + 20x + 20x + 25 = 4x(4x + 5) + 5(4x + 5) = (4x + 5)(4x + 5) = (4x + 5)2

-18

12x + 5 - 2x =(12x - 2x) + 5 =10x + 5 =5 (2x + 1)

(4x + 5)(4x + 5)

Simplified: 5+1x

-4x + 5 + 3x + 6 = -x + 11

If: y = 4x^2 -12x -3 and y = x^2 +11x +5 Then: 4x^2 -12x -3 = x^2 +11x +5 Transposing terms: 3x^2 -23x -8 = 0 Factorizing: (3x+1)(x-8) = 0 => x = -1/3 or x = 8 Therefore the x coordinates are: -1/3 and 8

4x+5 = -9 4x = -9-5 4x = -14 x = -3.5

F.O.I.L= First, Outside, Inside, Last.Example: (2x+3)(4x+5)First: 2x X 4x = 8x2Outside: 2 X 5 = 10Inside: 3 X 4x = 12xLast: 3 X 5 = 15________________Final result: 8x2+12x+25

5+4x-7 = 4x+3-x 4x-2 = 3x+3 4x-3x = 3+2 x = 5