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Mathematics
Isla Price
28 October, 13:16
If A=3x^2+5x-6 and B=-2x-6x+7, then what is A-B
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Emery Weaver
28 October, 13:34
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A=3x^2+5x-6
B=-2x^2-6x+7
A-B = (3x^2+5x-6) - (-2x^2-6x+7)
remove parentheses
A-B=3x^2+5x-6+2x^2+6x-7
combine like terms
A-B=5x^2+11x-13
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