ANSWER:
x(x - 2) = 4
x² - 2x - 4 = 0
So, a = 1; b = - 2; c = - 4.
Answer:
a = 1, b = - 2, c = - 4
Step-by-step explanation:
I think the answer would be 1:2 because 15 is half of 30 so the simplest form is a half
P=4x+20
A=x^2+10x+21
Perimeter=2(x+7)+2(x+3)
2x+14+2x+6
4x+20
Area=(x+7)(x+3)
x^2+10x+21
-6 - (-9) / 8
-6 + 9 / 8
3 / 8