126
42x
It is: 42x+30x^2
7x = 42 Divide both sides by '7'. Hence x = 42/7 x = 6 The answer!!!!!
Factor out a 2. 2(x3 - 21x + 20) That factors to 2(x - 1)(x - 4)(x + 5) The roots are -5, 1 and 4
If you mean: -2(3x-3) = 7x-2 then the value of x works out as 8/13
Without an equality sign the expession given is not an equation. But if you mean 8 = 42x then the value od x is 8/42
if x-42x-8=0 x=-5.12500
y-42x = 24 >> Add 42x to both sides << y=24+42x >> Subtract 24 from both sides << y-24=42x >> Divine both sides by 42 << x=(y-24)/42
−39x−6
5x - 42x + 5 = - 37 x +5
42x+35x-35x=42x it's leave 85 so it's change into a negative 42x-85 is the answer
x2 - 42x + 441 = (x - 21)2
126
If that's +42x + 49, the answer is (3x + 7)(3x + 7) or (3x + 7)2 If that's -42x + 49, the answer is (3x - 7)(3x - 7) or (3x - 7)2
210x
126 ._.