What must be subtracted from a³ -4a² +5a-6 to obtain a² -2a +1
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Step-by-step explanation:
Given that:-
Let X be the subtracted from a³ -4a² +5a-6 to obtain a² -2a +1.
=>a³ -4a² +5a-6 -X = a² -2a +1.
=>X=(a³ -4a² +5a-6 ) -(a² -2a +1)
=>X=a³ -4a² +5a-6 -a² +2a -1
=>X=a³-5a²+7a-7
The required expression is a³-5a²+7a-7
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