求解 x^2+3x-4=0 | Microsoft Math Solver
将 x^ {2}+3x-4 改写为 \left (x^ {2}-x\right)+\left (4x-4\right)。 形式为 ax^ {2}+bx+c=0 的所有方程式均可求解，方法是使用二次公式来求解: \frac {-b±\sqrt {b^ {2}-4ac}} {2a}。 此二次公式可得到两个解，一个是当 ± 取加号时的解，另一个是取减号时的解。 此公式采用标准形式: ax^ {2}+bx+c=0。 在二次公式 \frac {-b±\sqrt {b^ {2}-4ac}} {2a} 中用 1 替换 a，3 替换 b，并用 -4 替换 c。 这样的二次方程式可通过转换为完全平方形式来求解。 要化为完全平方形式，等式必须先转换为 x^ …
Solve x^2+3x-4 | Microsoft Math Solver
x^{2}+3x-4=\left(x-1\right)\left(x-\left(-4\right)\right) Factor the original expression using ax^{2}+bx+c=a\left(x-x_{1}\right)\left(x-x_{2}\right). Substitute 1 for x_{1} and -4 for x_{2}.
Graph y=x^2+3x-4 - Mathway
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Solve x^2+3x=4 | Microsoft Math Solver
To solve the equation, factor x^ {2}+3x-4 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. Since is negative, and have the opposite signs. Since is positive, the positive number has greater absolute value than the negative. List all such integer pairs that give product .
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x^2+3x-4 - Symbolab
x^2: x^{\msquare} \log_{\msquare} \sqrt{\square} \nthroot[\msquare]{\square} \le \ge \frac{\msquare}{\msquare} \cdot \div: x^{\circ} \pi \left(\square\right)^{'} \frac{d}{dx} \frac{\partial}{\partial x} \int \int_{\msquare}^{\msquare} \lim \sum \infty \theta (f\:\circ\:g) f(x)
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Solve for x in math means finding the value of x that would make the equation true. To get a variable by itself a combination of algebraic techniques is requiered.
Factor x^2-3x-4 | Mathway
In this case, whose product is −4 - 4 and whose sum is −3 - 3. Write the factored form using these integers. Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations, just like a math tutor.
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Draw, Scan, Solve, and Learn! Solve long equations, draw in landscape! See how to solve problems and show your work—plus get definitions for mathematical concepts. Instantly graph …