3 1 point Add (8x2 - 8x + 12) + (4x2 - 12x + 14). ]
1 answer:
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So remember that area of a rectangle is a = bh. In this case, our sides are 2 and n - 3 (three less than unknown number) and our area is 22. Using our info, we can form the equation: . From here we can solve for n.
Firstly, foil 2(n-3):
Next, add 6 on both sides of the equation:
Next, divide both sides of the equation and your answer will be 14 = n. In context, the value of the unknown number is 14 in.