factorize 1-18x-63x^2
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1-18x-63x²
=> -63x²-18x+1
=> -63x² -(21-3)x + 1
=> -63x² - 21x + 3x + 1
=> -21x ( 3x+1 ) + 1 ( 3x+1 )
=> (3x+1) (1-21x) Ans
@:-)
1-18x-63x²
=> -63x²-18x+1
=> -63x² -(21-3)x + 1
=> -63x² - 21x + 3x + 1
=> -21x ( 3x+1 ) + 1 ( 3x+1 )
=> (3x+1) (1-21x) Ans
@:-)
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