Verified answer

for both A and B you use the quadratic formula which gives you the solutions/x-intercepts which are approximately

2.92 and -1.25

:D

3x² - 5x - 11 = 0

Given ax² + bx + c = 0, quadratic formula:

x = [-b ± √(b² - 4ac)] / 2a

Given: 3x² - 5x - 11 = 0

Means: a = 3, b = -5, c = -11

Plug these values into the formula.

x = [-b ± √(b² - 4ac)] / 2a

x = [-(-5) ± √((-5)² - 4(3)(-11)] / 2(3)

x = [5 ± √(25 + 132)] / 6

x = (5 ± √147) / 6

ANSWER: x = (5 ± √147) / 6

ANSWER: The x-intercepts are ((5 ± √147) / 6, 0) and ((5 ± √147) / 6, 0)