Answer with explaination
A1 And A2
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Answer:
A1 = (3x-1) = length and breadth = (x+2)
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area = 3x²+5x-2
factors:
we first have to factorize this to find out
3x²+5x-2
3x²+6x-x-2
3x(x+2)-1(x+2)
(3x+1)(x+2) are the factors
Area of outer rectangle = 5x²+12x+10
Area of inner square = x²+2
area of shaded portion = 5x²+12x+10-(x²+2)
= 5x²+12x+10-x²-2
5x²-x²+12x+10-2
4x²+12x+8
= 4x²+8x+4x+8
= 4x²+4x+8x+8
= 4x(x+1)+8(x+1)
= (4x+8)(x+1)
= 4(x+2)(x+1)
hence the area of the shaded portion = 4(x+2)(x+1)
Dinosaurs1842:
hey there
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