Quadratic Factorization Cceacb
1. The problem is to verify the factorization of the quadratic expression $$2x^2 - 13x + 20$$ given as $$(2x - 5)(x - 4)$$.
2. The formula for expanding two binomials is:
$$ (a + b)(c + d) = ac + ad + bc + bd $$
3. Applying this to $$(2x - 5)(x - 4)$$:
$$ 2x \cdot x + 2x \cdot (-4) + (-5) \cdot x + (-5) \cdot (-4) $$
4. Simplify each term:
$$ 2x^2 - 8x - 5x + 20 $$
5. Combine like terms:
$$ 2x^2 - 13x + 20 $$
6. This matches the original quadratic expression, so the factorization is correct.