factorise:-
2-3x-2x²
Answers
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Answer:
-2x² - 3x + 2
-2x² - 3x + 22x² + 3x - 2
-2x² - 3x + 22x² + 3x - 22x² + (4-1)x - 2
-2x² - 3x + 22x² + 3x - 22x² + (4-1)x - 22x² + 4x - x - 2
-2x² - 3x + 22x² + 3x - 22x² + (4-1)x - 22x² + 4x - x - 22x(x + 2) - 1(x + 2)
-2x² - 3x + 22x² + 3x - 22x² + (4-1)x - 22x² + 4x - x - 22x(x + 2) - 1(x + 2)(2x - 1) (x+2)
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Answered by
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Answer:
2x²-3x-2=0
2x²+x-4x-2=0
x(2x+1)-2(2x+1)=0
(x-2)(2x+1)=0
for,
x-2=0
x=2
and,
2x+1=0
2x=-1
x=-1/2
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