SOLUTION: evaluate x=-3 and y=-4 2xsquare - ysquare + 2xy
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Question 140373
:
evaluate x=-3 and y=-4 2xsquare - ysquare + 2xy
Answer by
checkley77(12569)
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2X^2-Y^2+2XY
2(-3)^2-(-4)^2+2*-3*-4
2*9-16+2*12
18-16+24
42-16=26 ANSWER.