pahinge ng sagot math (gr.9)
Share
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Answer:
1.) Discriminant = 49
2.) Discriminant = -24
3.) Discriminant = 0
4.) Discriminant = 49
5.) Discriminant = -31
Step-by-step explanation:
Formula for Discriminant:
b² - 4ac
1.) x²- 5x - 6 = 0
a = 1 b = -5 c = -6
Discriminant = b² - 4ac
Discriminant = (-5)² - 4(1)(-6)
Discriminant = 25 - 4(-6)
Discriminant = 25 + 24
Discriminant = 49
2.) 2x² - 4x + 5 = 0
a = 2 b = -4 c = 5
Discriminant = b² - 4ac
Discriminant = (-4)² - 4(2)(5)
Discriminant = 16 - 4(10)
Discriminant = 16 - 40
Discriminant = -24
3.) y²- 6y + 9 = 0
a = 1 b = -6 c = 9
Discriminant = b² - 4ac
Discriminant = (-6)² - 4(1)(9)
Discriminant = 36 - 4(9)
Discriminant = 36 - 36
Discriminant = 0
4.) 2s² + 5s - 3 = 0
a = 2 b = 5 c = -3
Discriminant = b² - 4ac
Discriminant = (5)² - 4(2)(-3)
Discriminant = 25 - 4(-6)
Discriminant = 25 + 24
Discriminant = 49
5.) 5r² + 3r + 2 = 0
a = 5 b = 3 c = 2
Discriminant = b² - 4ac
Discriminant = (3)² - 4(5)(2)
Discriminant = 9 - 4(10)
Discriminant = 9 - 40
Discriminant = -31