x 2 4x 20 0 quadratic formula Step by step explanation 1 Find the coefficients To find the coefficients use the standard form of a quadratic equation a x 2 b x c 0 x 2 4 x 20 0 a 1 b 4 c 20 2 Plug these coefficients into the quadratic formula
X 2 4x 20 0 has two solutions x 2 16 i or x 2 16 i Solve Quadratic Equation using the Quadratic Formula 2 3 Solving x 2 4x 20 0 by the Quadratic Formula According to the Quadratic Formula x the solution for Ax 2 Bx C 0 where A B and C are numbers often called coefficients is given by Step 1 Enter the equation you want to solve using the quadratic formula The Quadratic Formula Calculator finds solutions to quadratic equations with real coefficients For equations with real solutions you can use the graphing tool to visualize the solutions Quadratic Formula x b b2 4ac 2a x b b 2 4 a c 2 a
x 2 4x 20 0 quadratic formula
x 2 4x 20 0 quadratic formula
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Free equations calculator solve linear quadratic polynomial radical exponential and logarithmic equations with all the steps Type in any equation to get the solution steps and graph Solve by Completing the Square x 2 4x 20 0 x2 4x 20 0 x 2 4 x 20 0 Subtract 20 20 from both sides of the equation x2 4x 20 x 2 4 x 20 To create a trinomial square on the left side of the equation find a value that is equal to the square of half of b b b 2 2 2 2 b 2 2 2 2
Algebra Solve Using the Quadratic Formula x 2 4x 20 x2 4x 20 x 2 4 x 20 Subtract 20 20 from both sides of the equation x2 4x 20 0 x 2 4 x 20 0 Use the quadratic formula to find the solutions b b2 4 ac 2a b b 2 4 a c 2 a X 2 4x left 2 right 2 20 left 2 right 2 Divide 4 the coefficient of the x term by 2 to get 2 Then add the square of 2 to both sides of the equation
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The quadratic formula x b b 2 4 a c 2 a is used to solve quadratic equations where a 0 polynomials with an order of 2 a x 2 b x c 0 Examples using the quadratic formula Example 1 Find the Solution for x 2 8 x 5 0 where a 1 b 8 and c 5 using the Quadratic Formula x b b 2 4 a c 2 a This equation is in standard form ax 2 bx c 0 Substitute 1 for a 4 for b and 20 for c in the quadratic formula frac b sqrt b 2 4ac 2a
Two solutions were found x 4 64 2 2 4i 2 0000 4 0000i x 4 64 2 2 4i 2 0000 4 0000i Tiger shows you step by step how to solve YOUR Quadratic Equations x 2 4x 20 0 by Completing the Square Quadratic About the quadratic formula Solve an equation of the form a x 2 b x c 0 by using the quadratic formula x b b 2 4 a c 2 a
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x 2 4x 20 0 quadratic formula - Solve by Completing the Square x 2 4x 20 0 x2 4x 20 0 x 2 4 x 20 0 Subtract 20 20 from both sides of the equation x2 4x 20 x 2 4 x 20 To create a trinomial square on the left side of the equation find a value that is equal to the square of half of b b b 2 2 2 2 b 2 2 2 2