4x2 + 12x + 5 = (2x + 1)(2x + 5).
x2+12x+5 = 3 x2+12x+5-3 = 0 x2+12x+2 = 0
16X + 5
12x + 5 - 2x =(12x - 2x) + 5 =10x + 5 =5 (2x + 1)
-5 + 12x = 18x + 7Subtract 7 from each side:-12 + 12x = 18xSubtract 12x from each side:-12 = 6xDivide each side by 6:-2 = x
42
2(2x-11)(3x+5)
4x2 + 12x + 5 = (2x + 1)(2x + 5).
x2+12x+5 = 3 x2+12x+5-3 = 0 x2+12x+2 = 0
16X + 5
12x + 5 - 2x =(12x - 2x) + 5 =10x + 5 =5 (2x + 1)
X=5
you factor out the common 5so it would be: 5(x + 2)so that when you multiply back out 5 by x you get 5x and 5 by 2 you get 10
5/4x+7/12x is the same as 15/12x+7/12x = 21/12x
12x^3+17x^2+5x=0x(12x^2+17x+5)=0x(x+1)(12x+5)=0x=0x=-1x=-5/12
-5 + 12x = 18x + 7Subtract 7 from each side:-12 + 12x = 18xSubtract 12x from each side:-12 = 6xDivide each side by 6:-2 = x
x(x+5)