Math Problem Statement

Find the factors

Find the factors of the quadratic expression x^2 + x - 12.

Solution

The expression in the image is x2+x12x^2 + x - 12. To factor this quadratic expression, we need to find two numbers that multiply to 12-12 (the constant term) and add to 11 (the coefficient of the linear term xx).

The two numbers that satisfy these conditions are 44 and 3-3, because:

4×(3)=124 \times (-3) = -12 4+(3)=14 + (-3) = 1

Therefore, the factorization of x2+x12x^2 + x - 12 is:

(x+4)(x3)(x + 4)(x - 3)

Would you like more details or have any questions about this factorization?

Here are 5 related questions for further practice:

  1. How would you factor x25x+6x^2 - 5x + 6?
  2. What are the roots of the equation x2+x12=0x^2 + x - 12 = 0?
  3. How can you use the quadratic formula to verify the factors of x2+x12x^2 + x - 12?
  4. What is the relationship between the coefficients and the roots of a quadratic equation?
  5. How can you factor a quadratic expression if the leading coefficient is not 1?

Tip: Always check your factors by multiplying them back together to ensure you get the original expression.

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Math Problem Analysis

Mathematical Concepts

Algebra
Quadratic Equations
Factoring

Formulas

Quadratic equation formula ax^2 + bx + c = 0

Theorems

Factorization method for quadratic equations

Suitable Grade Level

Grades 7-9