Answer:
15/56 a²
Step-by-step explanation:
because we are ✖️ it
Answer: A
Step-by-step explanation:
Answer:
13
Step-by-step explanation:

Hope this helps..
Answer:
128.7
Step-by-step explanation:
81.90 ÷ 7 = 11.7
11.7 x 11 = 128.7
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