Factor the quadratic:
x2+2x = 35
The quadratic you entered is not in standard form:
ax2 + bx + c = 0
Subtract 35 from both sides
x2+2x - 35 = 35 - 35x2+2x - 35 = 0
Set up the a, b, and c values:
a = 1, b = 2, c = -35
Build factor pairs:
Since a = 1, find all factor pairs of c = -35
These must have a sum = 2
| Factor Pairs of -35 | Sum of Factor Pair |
|---|---|
| 1,-35 | 1 - 35 = -34 |
| 5,-7 | 5 - 7 = -2 |
| 7,-5 | 7 - 5 = 2 |
| 35,-1 | 35 - 1 = 34 |
We want {7,-5}
Since our a coefficient = 1, we setup our factors
(x + Factor Pair Answer 1)(x + Factor Pair Answer 2)
Final Answer
(x + 7)(x - 5)
You have 1 free calculations remaining
What is the Answer?
(x + 7)(x - 5)
How does the Quadratic Equations and Inequalities Calculator work?
Free Quadratic Equations and Inequalities Calculator - Solves for quadratic equations in the form ax2 + bx + c = 0. Also generates practice problems as well as hints for each problem.
* Solve using the quadratic formula and the discriminant Δ
* Complete the Square for the Quadratic
* Factor the Quadratic
* Y-Intercept
* Vertex (h,k) of the parabola formed by the quadratic where h is the Axis of Symmetry as well as the vertex form of the equation a(h - h)2 + k
* Concavity of the parabola formed by the quadratic
* Using the Rational Root Theorem (Rational Zero Theorem), the calculator will determine potential roots which can then be tested against the synthetic calculator.
This calculator has 4 inputs.
What 5 formulas are used for the Quadratic Equations and Inequalities Calculator?
y = ax2 + bx + c(-b ± √b2 - 4ac)/2a
h (Axis of Symmetry) = -b/2a
The vertex of a parabola is (h,k) where y = a(x - h)2 + k
For more math formulas, check out our Formula Dossier
What 9 concepts are covered in the Quadratic Equations and Inequalities Calculator?
- complete the square
- a technique for converting a quadratic polynomial of the form ax2 + bx + c to a(x - h)2 + k
- equation
- a statement declaring two mathematical expressions are equal
- factor
- a divisor of an integer n, also called a factor of n, is an integer m that may be multiplied by some integer to produce n.
- intercept
- parabola
- a plane curve which is approximately U-shaped
- quadratic
- Polynomials with a maximum term degree as the second degree
- quadratic equations and inequalities
- rational root
- vertex
- Highest point or where 2 curves meet