find the value 25x²+9y²+30xy,when x=8 and y=10
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25x²+9y²+30xy
put the value of x and y
25(8)²+9(10)²+30(9×10)
25×64+9×100+30×90
1600+900+2700
5,200
put the value of x and y
25(8)²+9(10)²+30(9×10)
25×64+9×100+30×90
1600+900+2700
5,200
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