10.If A=4 + 3x,
B= 5 - 4x + 2x,
C = 3x² – 5x.
D = -x² + 2x + 5, find
a) A + B - C
b) A - (B-C)
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Answer:
Answer:a) 3x²-4x+9
Answer b) 3x²+10x+5
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