simplify the expression and evaluate as direct : 3y(2y-7)-3(y-4)-63 for y=-2
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3y(2y-7)-3(y-4)-63
=>3(-2){2×-2 -7}-3(-2-4)-63
-6(-4-7) -3(-6)-63
-6(-11) +18-63
66+18-63
84-63=21 is the ans
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