WebMar 25, 2016 · Explanation: 2x2 + 4x −5 is in the form ax2 + bx + c with a = 2, b = 4 and c = −5. This has discriminant Δ given by the formula: Δ = b2 − 4ac = 42 − (4 ⋅ 2 ⋅ ( −5)) = 16 … WebMar 28, 2016 · Explanation: x2 +2x − 5 = 0. This is a Quadratic equation (in form ax2 +bx +c = 0) Use Quadratic equation. x = −b ± √b2 −4ac 2a. Where. a = 1,b = 2,c = − 5. → x = −2 ± √22 − 4(1)( − 5) 2(1) → x = −2 ± √4 −4( − 5) 2.
Solve by Factoring x^2+4x-5=0 Mathway
WebFeb 1, 2024 · Find the roots 2x 2 + 4x - 5 =0 See answers Advertisement wolf1728 Use the quadratic formula x = [-4 +- sqrt (16 - 4*2*-5)] / 4 x1 = [-4 + sqrt (56)] / 4 x2 = [-4 - sqrt … WebSolve Using the Quadratic Formula x^2-4x-5=0 x2 − 4x − 5 = 0 x 2 - 4 x - 5 = 0 Use the quadratic formula to find the solutions. −b±√b2 −4(ac) 2a - b ± b 2 - 4 ( a c) 2 a Substitute the values a = 1 a = 1, b = −4 b = - 4, and c = −5 c = - 5 into the quadratic formula and solve for x x. 4±√(−4)2 −4 ⋅(1⋅−5) 2⋅1 4 ± ( - 4) 2 - 4 ⋅ ( 1 ⋅ - 5) 2 ⋅ 1 the harlot
Solve Quadratic equations 2x^2-4x-5=0 Tiger Algebra Solver
WebThus, all the roots (or zeros) of f (x) = 2x 4 - 5x 3 - 4x 2 + 15 x - 6 are 1/2, 2, √3 and -√3. Applications of Rational Root Theorem Here are the applications/uses of the rational root theorem. The rational root theorem gives all the possible rational zeros of the polynomial. WebTo solve the quadratic equation, we need to find the roots of a given quadratic equation, we use the discriminant formula given by: x = −b±√b2−4ac 2a x = − b ± b 2 − 4 a c 2 a Solved Examples on Roots Calculator Example1: Solve the given linear equation 3x + 5 = 0 Solution: 3x + 5 = 0 3x = -5 x = -5 / 3 Example2: Web-5x²-2x-5=0 inayon sa quadratic equation. 2. 4. Write -2x = -5x2 +5 in the form ax + bx + c =0a. -2x + 5x2 +5 +Ob. 5x2 - 2x-5 =0C. -5x² - 2x - 5=0d. 5x2-5= 2x ... 17. 1.) x4 - 5x2 + … the harlot 22lr