To solve a quadratic equation using the quadratic formula: 1. Write down the values for a, b, and c. 2. Plug in the values for a, b, and c into the formula: x= -b+√b²-4ac 2a 3. Simplify the expression under the radical. в с Practice: Solve the equations below using the quadratic formula. 5. 27²-2 4.-x²-2x+13=0 5. 2x² - 2x -15=0 Ac-x² B = -2x C = 13 x = -2x+1=2x² -4 (-2x) (13) = I1 4-41-21(13) 4 6.4x²-7= 0 A-4x² B=0 C=-7 x=2x² B = -2₁ C= -15 A 7.3x² - 2x-5=0 A=3x² 13 =-2x (= -5

Solve the equation that is of Quadratic Type 3. х6 — 7х3 —83D 0

Solve the equation by completing the square. X-7x+6=0 Choose the appropriate process for rearranging the equation, if needed, before completing the square to obtain an equation of the form (x + k)² = d. (Type an integer or a simplified fraction.) OA. x²-7x+6=0⇒x²-7x= -6 ⇒x² - 7x + = - = -6 OB. x²-7x+6=0⇒x² - 7x= x = -6 ⇒ = x²-x + = 6 7 12 OC. x² - 7x+6=0⇒x² - 7x = -6x²-x+=+ O D. x² - 7x+6=0⇒x² - 7x = -6 ⇒x² - 7x + = -6+ ▸