x=3
-x-2=1-2x Add 2x to either side
x-2=1 Add 2 to either side
x=3
Chat with our AI personalities
x2+12x+5 = 3 x2+12x+5-3 = 0 x2+12x+2 = 0
x2 + 12x - 64 = 0 ∴ (x + 16)(x - 4) = 0 ∴ x ∈ {4, -16}
168
x2+12x-13=0 The factor of x2+12x-13 is: (x+13)(x-1) So: x+13 = 0 or x-1 = 0 The answer is: x=-13 or x=1
If you're looking to solve for x, you can do so as follows: x2 + 12x - 6 = 0 x2 + 12x + 36 = 42 (x + 6)2 = 42 x + 6 = ± √42 x = -6 ± √42