Which expression is equivalent to 6x² - 19x - 55?
(2x - 11)(3x + 5)
(2x + 11)(3x - 5)
(6x - 11)(x + 5)
(6x + 11)(x - 5)

Solution:

Given 6x² - 19x - 55

This is a polynomial of degree 2

Quadratic equations are second-degree algebraic expressions and are of the form ax² + bx + c = 0.

= 6x² - 30x + 11x - 55

= 6x(x - 5) + 11(x - 5)

(6x + 11)(x - 5) is equivalent to 6x² - 19x - 55

Which expression is equivalent to 6x² - 19x - 55?

Summary:

(6x + 11)(x - 5) is equivalent to 6x² - 19x - 55