January 2019 1 14 Report
A) (2a-b)^2 +0.5(a-2b)(a+2b)
b) (2a-3)(2a+3)-3*(a-5)^2
c) (4x-3)(4x+3)-4(2x-1)^2
d) 5(3-5x)^2 -5(5x-3)(5x+3)
e) 4(8-8)(3a-1)-16a^2-3(6-8a)
f) ( \sqrt{3} +x)^2-2( \sqrt{3} -x)^2+2x
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