Answer:
(a+b+c) (a+b-c)
(a + b + c)(a + b - c)
Step-by-step explanation:
(a + b)² - c² ← is a difference of squares and factors in general as
x² - y² = (x + y)(x - y)
Here x = a + b and y = c , then
(a + b)² - c²
= (a + b + c)(a + b - c)
y=1/4x-1
m=(y2-y1)/(x2-x1)
m=(1-(-2))/(8-(-4))
m=(1+2)/(8+4)
m=3/12
m=1/4
y-y1=m(x-x1)
y-(-2)=1/4(x-(-4))
y+2=1/4(x+4)
y=1/4x+4/4-2
y=1/4x+1-2
28
-2 × -7 = 14
14 × 2 = 28
thats the correct answer
A = 800, B = 200, C = 400 Andy D = 400
