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3x^(2)+2x=11
Which of the following describes the solutions to the given equation?
Choose 1 answer:
A The equation has two distinct rational solutions.
B The equation has two distinct irrational solutions.
(C) The equation has one distinct real solution.
(D) The equation has no real solutions.

3x2+2x=11 3 x^{2}+2 x=11 \newlineWhich of the following describes the solutions to the given equation?\newlineChoose 11 answer:\newline(A) The equation has two distinct rational solutions.\newlineB The equation has two distinct irrational solutions.\newline(C) The equation has one distinct real solution.\newlineD The equation has no real solutions.

Full solution

Q. 3x2+2x=11 3 x^{2}+2 x=11 \newlineWhich of the following describes the solutions to the given equation?\newlineChoose 11 answer:\newline(A) The equation has two distinct rational solutions.\newlineB The equation has two distinct irrational solutions.\newline(C) The equation has one distinct real solution.\newlineD The equation has no real solutions.
  1. Rewriting the equation: First, we need to rewrite the equation in standard form by moving all terms to one side of the equation. 3x2+2x11=03x^2 + 2x - 11 = 0
  2. Determining factorability: Next, we will determine whether the quadratic equation can be factored easily. If not, we will use the quadratic formula to find the solutions.\newlineThe quadratic formula is given by x=b±b24ac2ax = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}, where aa, bb, and cc are the coefficients from the quadratic equation ax2+bx+c=0ax^2 + bx + c = 0.
  3. Identifying coefficients: Let's identify the coefficients aa, bb, and cc from our equation.\newlinea=3a = 3, b=2b = 2, and c=11c = -11.
  4. Calculating the discriminant: Now, we will calculate the discriminant, which is the part under the square root in the quadratic formula: b24acb^2 - 4ac. Discriminant = (2)24(3)(11)=4+132=136(2)^2 - 4(3)(-11) = 4 + 132 = 136.
  5. Determining the number of solutions: Since the discriminant is positive (136 > 0), we know that there are two distinct real solutions.\newlineNow we need to determine if these solutions are rational or irrational.
  6. Determining the nature of solutions: The discriminant is not a perfect square, which means the solutions will involve the square root of a non-perfect square number. Therefore, the solutions are irrational.
  7. Concluding the solutions: Given that the discriminant is positive and not a perfect square, we can conclude that the equation has two distinct irrational solutions.

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