Solve the quadratic equation by completing the square. x2+9x-2=0 Here is how far I got: x2+9x-2=0 (adding 2 to both sides) x2+9x=2 (half of 9 is 9/2, and (9/2)2 is 81/4) x2+9x+81/4=2+81/4 (adding 81/4 to both sides) This is where I got stuck: That after adding 81/4 to both sides of the equation, it is x2+9x+81/4=89/4 Can someone tell me please how they got to 89/4?

Q: Solve using the square root principle. Simplify completely  4(x-6)^2-35=14

A: The given equation is: 4(x-6)^2-35=14 4(x-6)^2=35+14 4(x-6)^2=49 2(x-6)=7 ( to take the positive…

Q: g using Factoring che quadratic equation. x* + 5x - 24 0 %3D x+8 %3D %3D

A: topic - solution of quadratic equations

Q: Please help with #3

A:

Q: i have a question about the step by step of 0= -x2+4x-5 using the quadratic formula

A: Consider the quadratic equation, -x2+4x-5=0 To solve the given equation,…

Q: Use the quadratic formula to solve the equation a? + 6x + 25 = 0. Enter multiple answers as a list…

A:

Q: Solve the quadratic equation by completing the square. x² +11x-5=0 Choose the appropriate process…

A: We have to solve above Quadratic equations

Q: Why must we change the equation 3x2 - 2x = 4 to 3x2 - 2x - 4 = 0 before applying the quadratic…

A: Consider the equation, 3x2-2x=4

Q: Use the quadratic formula to finc the roots of 3x² – 7x + 8 = 0 -

A: We have to use the quadratic formula to find the roots of the given equation. Quadratic formula is…

Q: Q 2 Solve x2-11x + 28 0, by using the quadratic formula

A:

Q: Solve the given quadratic equation using the method of your choice. 722 + 19 = 31z + 7 o {흙, 4} o…

A:

Q: Find the roots of x+2x+5=0 by using quadratic formula.

A:

Q: What can you tell about the roots of a quadratic equation if (b2-4ac), “b squared minus 4ac”, in the…

A:

Q: Solve the quadratic equations 1. x2 + 25 = 0 2. x2 - 2x + 2 = 0

A:

Q: 1.Determine and state the most efficient way of solving the quadratic equation. Then solve the…

A: Topic- Quadratic Equation

Q: THINKING 7. The following figure has an area that is 120 m2. Find the perimeter (round to 1dp) of…

A:

Q: x² + 4x - 12 = 0 2

A: I am going to solve the problem by using some simple algebra to get the required result of the given…

Q: 7. -2x2 + 28x - 91 = 0 %3D

A:

Q: Solve it by Quadratic formula 4x – 6x = x +5 %3D

A:

Q: 9x2-1= 63 Solve the equation using the square roots method

A:

Q: 4. a) 2k² = 7k b) 5x²-15x + 20 = 0 -

A: The given problem is to find the solutions for the given quadratic equations.

Q: Solve the roots of the following quadratic equations. 3(x+2)^2 = 48

A:

Q: Find out the discriminant of the quadratic equation 20x2+14x+20=0 using this definition

A: Given equation: 20x2+14x+20=0 Concept: Discriminant of a equation in the form ax2+bx+c=0 is given…

Q: An object was shot up into the air with an initial vertical speed of 640 feet per second. Its height…

A:

Q: value of its discriminant is positive and perfect square? * a. The roots are not real.. b. The roots…

A:

Q: Use the Quadratic Formula to solve the equation x² +4x = -11. %3D O x=-2+ V15 or x = -2 - V15 O…

A:

Q: 1. Consider the quadratic equation 2x2 + 14x + 2 0. a) Solve the equation using the quadratic…

A: Given equation

Q: 38. Solve the quadratic equation: 8x2 + 60 = -12. | а. 3, —3 b. V6,-V6 c. 2v6, –2/6 d. 3i, -3i

A:

Q: What is the intermediate step in the form (x + a)? = b as a result of completing the square for the…

A: Given :                 x2 - 18 x = -117 To find :                  The intermediate step