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-12x^(2)-tx+t=0
In the given equation, 
t is a nonzero constant. If the equation has only one real solution, 
s, what is the value of 
s ?

12x2tx+t=0 -12 x^{2}-t x+t=0 \newlineIn the given equation, t t is a nonzero constant. If the equation has only one real solution, s s , what is the value of s s ?

Full solution

Q. 12x2tx+t=0 -12 x^{2}-t x+t=0 \newlineIn the given equation, t t is a nonzero constant. If the equation has only one real solution, s s , what is the value of s s ?
  1. Understand Conditions for Real Solution: To find the value of the real solution ss, we need to understand the conditions for a quadratic equation to have only one real solution. A quadratic equation ax2+bx+c=0ax^2 + bx + c = 0 has only one real solution when its discriminant is zero. The discriminant is given by the formula b24acb^2 - 4ac.
  2. Calculate Discriminant: In the given equation 12x2tx+t=0-12x^2 - tx + t = 0, we can identify a=12a = -12, b=tb = -t, and c=tc = t. Let's calculate the discriminant using these values.\newlineDiscriminant (DD) = b24ac=(t)24(12)(t)=t2+48tb^2 - 4ac = (-t)^2 - 4(-12)(t) = t^2 + 48t.
  3. Set Discriminant Equal to Zero: For the equation to have only one real solution, the discriminant must be zero. Therefore, we set the discriminant equal to zero and solve for tt.t2+48t=0t^2 + 48t = 0
  4. Factorize and Solve for tt: We can factor out tt from the equation: t(t+48)=0t(t + 48) = 0
  5. Find Value of tt: Since tt is a nonzero constant, we cannot have t=0t = 0. Therefore, the only solution for tt is when t+48=0t + 48 = 0, which gives us t=48t = -48.
  6. Calculate Vertex for Real Solution: Now that we have the value of tt, we can find the value of the real solution ss. Since the equation has only one real solution, this solution is also the vertex of the parabola represented by the quadratic equation. The xx-coordinate of the vertex is given by b2a-\frac{b}{2a}.
  7. Calculate Vertex for Real Solution: Now that we have the value of tt, we can find the value of the real solution ss. Since the equation has only one real solution, this solution is also the vertex of the parabola represented by the quadratic equation. The xx-coordinate of the vertex is given by b2a-\frac{b}{2a}.Substitute a=12a = -12 and b=tb = -t (with t=48t = -48) into the vertex formula to find ss:s=t2a=(48)2(12)=4824=2.s = -\frac{-t}{2a} = -\frac{-(-48)}{2(-12)} = \frac{48}{-24} = -2.

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