Answer: 28ins²
Step-by-step explanation:
From the question, let the width of the rectangle = xins.
Therefore, the breadth = ( x + 3 )ins.
(A) The area of the rectangle which is L x B = x( x+ 3 )
= (x² + 3x)ins² . In polynomial.
(B) The area of the rectangle if the width is 4ins, that is if x = 4ins.To find the area, we substitute for x in the area above
= 4² + 3 x 4
= 16 + 12
= 28ins²
Answer:
A - x (x+3) = Area of the rectangle
B- 28 inches squared
B- using the formula from A
x = 4
x + 3 = 4 +3 = 7
4 times 7 is 28
The answer is y=x-4
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