Solve Using the Quadratic Formula x^2-4x-5=0 - Mathway
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. Simplify. Tap for more steps... The final answer is the combination of both solutions.
Solve by Completing the Square x^2-4x-5=0 - Mathway
Factor the perfect trinomial square into (x −2)2 (x - 2) 2. Solve the equation for x x. Tap for more steps... Pull terms out from under the radical, assuming positive real numbers.
Solve x^2-4x-5=0 | Microsoft Math Solver
To solve the equation, factor x^{2}-4x-5 using formula x^{2}+\left(a+b\right)x+ab=\left(x+a\right)\left(x+b\right). To find a and b, set up a system to be solved.
Solve by Factoring x^2+4x-5=0 | Mathway
Set x+5 x + 5 equal to 0 0 and solve for x x. Tap for more steps... The final solution is all the values that make (x−1)(x+5) = 0 (x - 1) (x + 5) = 0 true. Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations, just like a math tutor.
Solve x2-4x-5=0 | Microsoft Math Solver
Solve your math problems using our free math solver with step-by-step solutions. Our math solver supports basic math, pre-algebra, algebra, trigonometry, calculus and more.
x^2+4x+5=0 - Symbolab
x^{2}-x-6=0 -x+3\gt 2x+1 ; line\:(1,\:2),\:(3,\:1) f(x)=x^3 ; prove\:\tan^2(x)-\sin^2(x)=\tan^2(x)\sin^2(x) \frac{d}{dx}(\frac{3x+9}{2-x}) (\sin^2(\theta))' \sin(120)
Solve Quadratic equations -x^2-4x-5=0 Tiger Algebra Solver
Tiger shows you, step by step, how to solve YOUR Quadratic Equations -x^2-4x-5=0 by Completing the Square, Quadratic formula or, whenever possible, by Factoring
Find the Discriminant x^2-4x-5=0 - Mathway
The discriminant of a quadratic is the expression inside the radical of the quadratic formula. b2 − 4(ac) b 2 - 4 (a c) Substitute in the values of a a, b b, and c c. (−4)2 −4(1⋅−5) (- 4) 2 - 4 (1 ⋅ - 5) Evaluate the result to find the discriminant. Tap for more steps...
Solve x^2+4x+5=0 | Microsoft Math Solver
All equations of the form ax^ {2}+bx+c=0 can be solved using the quadratic formula: \frac {-b±\sqrt {b^ {2}-4ac}} {2a}. The quadratic formula gives two solutions, one when ± is addition and one when it is subtraction. This equation is in standard form: ax^ {2}+bx+c=0.
How do you complete the square to solve x^2 -4x -5=0?
2018年4月25日 · We can regroup the equation as: (x2 − 4x) −5 = 0. This equation is in the form: ax2 + bx + c = 0 where a = 1. (That is important.) We divide b by two. b = − 4. ⇒ b 2 = − 2 square the answer. ⇒ (−2)2 = 4. We add this answer inside the parenthesis.
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