Answer:
I'm guessing, say all of them are 20 cm, by the looks of it
wat is the actual question for this??
Step-by-step explanation:
a=-8 b=2
x^2+6x-16
x^2+(8-2)x-16=0
x^2+8x-2x-16=0
X(X+8)-2(X+8)=0
(X+8)(x-2)=0
Compare with (X+a)(X+b)
Where we get a=-8 b=2
