subject
Mathematics, 27.11.2021 02:40 barbaragomez27

Solve this quadratic equation by factorisation: 2y² + 4y – 30 = 0

my answer is

(2y+6)×(y-5)
2y+6=0 or y-5=0
y=-3 or y=5
is that correct?

ansver
Answers: 1

Another question on Mathematics

question
Mathematics, 21.06.2019 17:30
What term makes it inconsistent y=2x - 4 ?
Answers: 3
question
Mathematics, 21.06.2019 19:00
What is the explicit formula for this sequence? -7, -4, -1, 2, a.) an = 8 + (b - 1)3 b.) an = -7 + (n - 1)3 c.) an = 3 + (n -1) (-7) d.) an = -7 + (n - )
Answers: 1
question
Mathematics, 21.06.2019 20:30
Solve this riddle: i am an odd number. i an less than 100. the some of my digit is 12. i am a multiple of 15. what number am i?
Answers: 1
question
Mathematics, 21.06.2019 21:00
If 30 lb of rice and 30 lb of potatoes cost ? $27.60? , and 20 lb of rice and 12 lb of potatoes cost ? $15.04? , how much will 10 lb of rice and 50 lb of potatoes? cost?
Answers: 1
You know the right answer?
Solve this quadratic equation by factorisation: 2y² + 4y – 30 = 0

my answer is
Questions
question
Mathematics, 18.11.2019 02:31
Questions on the website: 13722367