Here,
= 12 + 4 - 4X + 3 + 21 - 8 + 7X + 8
= 40 + 3X
May be helpful
thank you
Answer:
A number plus seven times itself equals 1200.
Step-by-step explanation:
The number is "x", and 7 times itself is 7 "x". When one adds the two, they get 1200. Hence it models the situation;
x + 7x = 1200.
Answer:
Three zeros 
x-intercepts: (-4,0), (1,0), (6,0)
Step-by-step explanation:
Plot the graph of the function 
on the coordinate plane. This graph intersects the x-axis at three different points (see attached diagram):
This means are zeros of the function
The constant of proportionality is 4. Also, look at 36, and 9 because you could have just divided it it is not as complicated as you think.
Using Pythagorean thereon
