find the value of the expression for x=0 and y=(-3) x 2square - y 2square + 3x -5y
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Since , x = 0
y = ( -3 )
= x^2 - y^2 + 3x - 5y
= 0^2 - ( -3 )^2 + 3 × 0 - 5 × ( -3 )
= 0 - 9 + 0 + 15
= 6
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