A rectangle with an area of x2 - 4x – 12 square units is represented by the model.
What side lengths should be used to model the
rectangle?
O (x + 2) and (x-6)
O (x + 6) and (x-2)
(x + 2) and (x - 10)
O (x + 10) and (x-2)
+x2
1-x-x-x-x-x-x
+X
-
-
JEAN-
+X
1
1
-

answer: -2+√x,-2-√x

i hope this , i don't know if you're looking for a pair or not.

u = -(6/7)w

step-by-step explanation:

place all values with 'u' on one side of the equation.

4u + 8w = - 3u + 2w

4u + 3u = 2w - 8w

further simplify the equation by solving the addition and subtraction.

7u = - 6w

make 'u' the independent variable by placing its co-efficient on the right-hand side.

u = - (6/7)w

b, i believe, but not sure.

multiplication is multiplication.   it might feel harder depending on what level of math you are in, but generally it will be the same old stuff, while implementing some new concepts and methods of solving work.