2x2+1x-3=0
4+x-3=0
x+1+0
x=-1 is your final answer
Chat with our AI personalities
The solutions work out as: x = 52/11, y = 101/11 and x = -2, y = -11
2x2-7x+3 = 0 (2x-1)(x-3) = 0 x = 1/2 or x = 3
Differentiate the function with respect to x: d/dx (x3 - 2x2 - 5x + 6) = 3x2 - 4x - 5 Set this derivative = 0 and solve. 3x2 - 4x - 5 = 0 implies that x = -0.7863 or 2.1196 (to 4 dp)
2x2 - 6x + 4 = 0 2(x2 - 3x + 2) = 0 2(x - 1)(x - 2) = 0 x - 1 = 0 and x - 2 = 0 So, x = 1 and x = 2.
2x2-5 = 0 +5 +5 2x2 = 5 /2 /2 x2 = 5/2 sqrt(x2) = sqrt (5/2) x = sqrt(5/2) Ps: Sqrt means square root