what is the value of the following expression

Algebra
Tutor: None Selected Time limit: 1 Day

if x=2 and y= -2

6x to the second - 5xy -4y to the second

Nov 23rd, 2014

(6x)2 -5xy+(4y)2

Or

(6x)2 -5xy-(4y)2

x=2 , y= -2

(12)2-5(2)(-2) +(-8)2 = 144+20+64 =228

Or

(12)2-5(2)(-2) -(-8)2 = 144+20-64 =100


Nov 23rd, 2014

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