____Must be Subtracted from x³-3x²+5x1 to get 2x³+x²- 4 x +2
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____Must be Subtracted from x³-3x²+5x-1 to get 2x³+x²-4x+2
Here, from means the number/expression after from will come first, then the - sign, then the other expression.
Let the number that must be subtracted from x³-3x²+5x-1 to get 2x³+x²-4x+2 be a.
According to our rule, we can rewrite the question as:
x³-3x²+5x-1(-a)=2x³+x²-4x+2
a= -{(2x³+x²-4x+2)-(x³-3x²+5x-1)} [Simplify the brackets]
a= -(2x³+x²-4x+2-x³+3x²-5x-1) [rearrange the terms and simplify]
a= -(2x³-x³+x²+3x²-4x-5x-1+2)
a= -(x³+4x²-9x+1)
a= -x³-4x²+9x-1
Thus, -x³-4x²+9x-1 must be Subtracted from x³-3x²+5x-1 to get 2x³+x²-4x+2
HOPE THIS HELPS :D
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