Answer:
7x2 + 14x = 0
x2 + 3x -5 = 0
x2 - x = 3x + 7
Step-by-step explanation:
A quadratic equation has the highest power of x to the second power. It must have x to the second power
7x2 + 14x = 0 quadratic
x3 - 3x2 + 1 = 0 not quadratic but cubic
5x - 7 = 0 not quadratic but linear
x2 + 3x -5 = 0 quadratic
x - 5 = 9x + 7 not quadratic but linear
x2 - x = 3x + 7 quadratic
Answer:
d
Step-by-step explanation:
u just have to plug in the numbers
f(-3)= -3^2
f(-3)= 9
g(4)=2(4)-3
g(4)=5
9+5=14
I hope I'm right and hope I helped:)
Answer:
Step-by-step explanation:
x + 10 = 3(x + 4)
x + 10 = 3x + 12
10 - 12 = 3x - x
- 2 = 2x
x = - 1
Answer: 76
Step-by-step explanation:
Answer:3,-45,-42
Step-by-step explanation:
The number given+ 3
