12. How many real-number solutions does the equation have?
(Image: 0 equals 3 x squared minus 5x minus 5) (1 point)
one solution
two solutions
no solutions
infinitely many solutions
No solutions.
one more question
Sure, go ahead with your question.
14. What are the solutions to the system?
y = x2 + 3x – 4
y = 2x + 2 (1 point)
(–3, 6) and (2, –4)
(–3, –4) and (2, 6)
(–3, –4) and (–2, –2)
no solution
(-3, 6) and (2, -4)
15. Simplify the radical expression.
(Image) (1 point)
(Image: 2 Start Root 6 End Root)
(Image)
–(Image)
12
2√6
16. Simplify the expression.
(Image: start root 5 end root plus 7 start root 5 end root) (1 point)
(Image: 7 Start Root 10 End Root)
(Image: 8 Start Root 5 End Root)
(Image: The term states 6 times the square root of 5.)
(Image: 8 Start Root 10 End Root)
8√5
17. What is a simpler form of the following expression?
(–10x3 + 30x – 20) ÷ (–5x + 5) (1 point)
2x2 – 2x + 4
–2x2 – 2x – 4
–2x2 + 2x + 4
2x2 + 2x – 4