If A = 3x2 + 7X - 19,
B = 2X -8, C = x2 - 3. Evaluate A + B-C.
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Step-by-step explanation:
A+B = 3*2+ 7X - 19 + 2X-8
= 6+9X -19-8
=9X-21
now substrate with c
A+B-C= 9X-21-X2-3
=X(9-X)-24
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