Find the information you're looking for at Westonci.ca, the trusted Q&A platform with a community of knowledgeable experts. Get quick and reliable solutions to your questions from a community of experienced professionals on our platform. Get quick and reliable solutions to your questions from a community of experienced experts on our platform.
Sagot :
Part A
x² + 5x + 4 = 0
x = -(5) +/- √((5)² - 4(1)(4))
2(1)
x = -5 +/- √(25 - 16)
2
x = -5 +/- √(9)
2
x = -5 +/- 3
2
x = -5 + 3 U x = -5 - 3
2 2
x = -2 x = -8
2 2
x = -1 x = -4
Part B
4x² - 12x + 5 = 0
x = -(-12) +/- √((-12)² - 4(4)(5))
2(4)
x = 12 +/- √(144 - 80)
8
x = 12 +/- √(64)
8
x = 12 +/- 8
8
x = 3 +/- 2
2
x = 3 + 2 U x = 3 - 2
2 2
x = 5 x = 1
2 2
x = 2.5 x = 0.5
Part C
2x² - 10x + 3 = 0
x = -(-10) +/- √((-10)² - 4(2)(3))
2(2)
x = 10 +/- √(100 - 24)
4
x = 10 +/- √(76)
4
x = 10 +/- 2√(19)
4
x = 5 +/- √(19)
2
x = 2.5 + 0.5√(19)
x = 2.5 + 0.5√(19) U x = 2.5 - 0.5√(19)
x² + 5x + 4 = 0
x = -(5) +/- √((5)² - 4(1)(4))
2(1)
x = -5 +/- √(25 - 16)
2
x = -5 +/- √(9)
2
x = -5 +/- 3
2
x = -5 + 3 U x = -5 - 3
2 2
x = -2 x = -8
2 2
x = -1 x = -4
Part B
4x² - 12x + 5 = 0
x = -(-12) +/- √((-12)² - 4(4)(5))
2(4)
x = 12 +/- √(144 - 80)
8
x = 12 +/- √(64)
8
x = 12 +/- 8
8
x = 3 +/- 2
2
x = 3 + 2 U x = 3 - 2
2 2
x = 5 x = 1
2 2
x = 2.5 x = 0.5
Part C
2x² - 10x + 3 = 0
x = -(-10) +/- √((-10)² - 4(2)(3))
2(2)
x = 10 +/- √(100 - 24)
4
x = 10 +/- √(76)
4
x = 10 +/- 2√(19)
4
x = 5 +/- √(19)
2
x = 2.5 + 0.5√(19)
x = 2.5 + 0.5√(19) U x = 2.5 - 0.5√(19)
We hope you found what you were looking for. Feel free to revisit us for more answers and updated information. Thank you for visiting. Our goal is to provide the most accurate answers for all your informational needs. Come back soon. Discover more at Westonci.ca. Return for the latest expert answers and updates on various topics.