Mathematics
Grade10
Easy
Question
A furniture company created an L-shaped table by removing part of a square table.
Write an expression that represents the area of the L-shaped table.
- (10p – n)2
- (10p – n) (10p + n)
- (n – 10p) (n – 10p)
- (n + 10p)2
Hint:
Quadratic polynomial is a polynomial in which the highest degree monomial is of the second degree.
The correct answer is: (10p – n) (10p + n)
We have to find the area of the L shaped table.
Area of the full square table = 10p * 10p = 100p2
Area of the part removed = n * n = n2
Area of the L-shaped table = Area of the full table – Area of the part removed
= 100p2 – n2 = (10p – n) (10p + n).
Hence, the correct option is C.
a²-b² = (a-b)(a+b).
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