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A rectangle has sides of x and (x-2) cm.
The area of the rectangle is 3cm2
х
x-2
Show that (x - 1)2 - 4 = 0

Sagot :

Step-by-step explanation:

A rectangle has sides of x and (x-2) cm

Area = 3cm²

x(x-2)=3

x²-2x-3=0

BY USING COMPLETING THE SQUARE METHOD

[x²-2(x)(1)+1²] -1² -3=0

(x - 1)² - 1-3=0

(x-1)²-4=0

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