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Exercise

$\left(x-4\right)\left(x+1\right)=x^2-3x-4$

Step-by-step Solution

Learn how to solve quadratic formula problems step by step online. Solve the quadratic equation (x-4)(x+1)=x^2-3x+-4. Factor the trinomial x^2-3x-4 finding two numbers that multiply to form -4 and added form -3. Rewrite the polynomial as the product of two binomials consisting of the sum of the variable and the found values. Cancel x-4 from both sides of the equation. Group the terms of the equation by moving the terms that have the variable x to the left side, and those that do not have it to the right side.
Solve the quadratic equation (x-4)(x+1)=x^2-3x+-4

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Final answer to the exercise

true

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Main Topic: Quadratic Formula

In elementary algebra, the quadratic formula is the solution of the quadratic equation. There are other ways to solve the quadratic equation instead of using the quadratic formula, such as factoring, completing the square, or graphing. Using the quadratic formula is often the most convenient way.

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