Mathematics
Simplify:
-3(1 - x2) - 2{x2 - (3 - 2x2)}
Algebraic Expressions
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Answer
-3(1 - x2) - 2{x2 - (3 - 2x2)}
= -3(1 - x2) - 2{x2 - 3 + 2x2}
= -3(1 - x2) - 2{(x2 + 2x2) - 3}
= -3(1 - x2) - 2{3x2 - 3}
= -3 + 3x2 - 6x2 + 6
= (-3 + 6) + (3x2 - 6x2)
= 3 + (-3x2)
= 3 - 3x2
Hence, -3(1 - x2) - 2{x2 - (3 - 2x2)} = 3 - 3x2
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